Things are about to change


1. Film yourself on your 1st, 25th, 50th, 75th, and 100th day of sweat
2. Label the videos this way: DAY - COUNTRY - NAME (Example: DAY 1 - LOS ANGELES, USA - AMMAR)
3. Send your videos to
Text "I'm in" to 323-310-5420 to get updates from Ammar and Matt on #100daysofsweat
To look into the science of 100 days of sweat, our friend Tom from Aspect Science made a great video about it, check it out here:
Now get out there and sweat! Much love :)
If you want to join the Yes Fam Facebook group which is 80,000+ of our most engaged and badass community members, you can apply here:
PERFECT ROYALTY FREE MUSIC FOR FRdownload: free 30 day trial here:
Musicbed has amazing montage and cinematic music:
For an amazing b-roll and footage library, checkout:
Yes Theory Spotify Playlist:
Exclusive challenges on Instagram:
Who are we?
We believe that life can be as fulfilling as you wish, so long as you're willing to seek discomfort. And we make videos about it.
Business Inquiries:
Hosts: Thomas Brag, Ammar Kandil, Matt Dajer
Editors: Thomas Brag, Thomas Dajer, Cam Peddle, Marshall Hodge


  • Yes Theory

    Yes Theory

    Il y a 15 jours

    Text "I'm in" to 323-310-5420 to get updates from Ammar and Matt on #100daysofsweat

  • Document 4

    Document 4

    Il y a 8 jours

    I did it yes theory

  • Valentino Pangestu

    Valentino Pangestu

    Il y a 9 jours

    @lisa aera how much does it cost?

  • Matteo Zoppetti

    Matteo Zoppetti

    Il y a 11 jours

    @Nathan Burke Thanks man

  • Matteo Zoppetti

    Matteo Zoppetti

    Il y a 11 jours

    I can't send the message, but I wanna let you know that "I'M IN"

  • Nathan Burke

    Nathan Burke

    Il y a 12 jours

    LegendOfAwesome I am too. It worked for me by sending it to +1 323 310 5420 from AUSTRALIA

  • Nick werner

    Nick werner

    Il y a 3 heures

    i only saw this video on the 25th of june is it still possible for me to be apart of the 100 days of sweat, love your videos btw

  • NinjaJLego


    Il y a 4 heures

    dang it, I watched this too late but i am still gonna do it

  • Vain


    Il y a 5 heures

    Im late but I just started

  • Michele Ponte

    Michele Ponte

    Il y a 14 heures

    It is so hot here, and so will be in the next 3 months, that I don't even need to try 😅

  • نجمة الجوزاء

    نجمة الجوزاء

    Il y a 15 heures

    It's 50 degrees this will be easy

  • Maximilien Robespierre

    Maximilien Robespierre

    Il y a 15 heures

    I live in Nigeria, I sweat everyday without even trying

  • Eonkuja


    Il y a 17 heures

    I want to do it but i have a medical problem wich means i cant sweat

  • Eric Ludolph

    Eric Ludolph

    Il y a 19 heures

    15/100 Days of Sweat This video change my Life. Thanks @Yes Theory!!! greetings from Germany

  • E.H A

    E.H A

    Il y a jour

    You know what... I’ve been watching Ammar’s ig strories & always skipped the #100daysofsweat ones coz I’m personally scared of being motivated to do it... coz knowing myself, i will never commit and might as well i skip. But lately I’ve been feeling down and this 100daysofsweat keep on crossing my mind. Hence I’m watching this video right now and... feeling motivated. I’m gonna make a change in my life and improved my self-care. Wish me luck 🌸🌸 Love you guys! Very inspiring

  • Hamdi Osman

    Hamdi Osman

    Il y a jour

    I was planning to do workouts daily this summer

  • ThatOneMaggew


    Il y a jour

    I can do that I'm in china

  • Maddy Kaplan

    Maddy Kaplan

    Il y a jour

    I’ve been in a bit of a rut, and right after watching this I took my dog and went on a run. It felt great. Thank you :)

  • Elias gailndo

    Elias gailndo

    Il y a jour

    I am from California high desert and i want to go to Mexico Guadalajara because i want to learn how my parents lived and met my family that i never met in my life

  • Rissa piie

    Rissa piie

    Il y a jour

    Hyperhydrosis who

  • itz Elias

    itz Elias

    Il y a jour

    im in

  • Tyler M

    Tyler M

    Il y a jour

    Cheating the system. Sunbathing makes me sweat

  • Biscayne


    Il y a jour

    Move to Florida, easy 100 days of sweat....

  • Elisabeth Wilson

    Elisabeth Wilson

    Il y a jour

    this is literally my favorite yt channel now, so many positive vibes

  • Rannarr CSGO Content

    Rannarr CSGO Content

    Il y a jour

    2:25 tf did that guy do lol

  • blue euan

    blue euan

    Il y a jour

    day two :)

  • Pici3k


    Il y a jour

    I failed. After first day... :/

  • alanna grace

    alanna grace

    Il y a jour

    I mean I will, but it’s 11:30pm on a school night sooo

  • Mostafa Safari

    Mostafa Safari

    Il y a jour

    man whats wrong with you, i was moving from kitchen to living room with a glass of tee and my laptop and he said drop everything you have right now. Guess what i was close to do it



    Il y a 2 jours

    i can join 13 days later ? please??????????? T.T

  • Erik Sandberg

    Erik Sandberg

    Il y a 2 jours

    I just published an app for the challenge! It's called 100 Days of Fitness, go check it out on the Apple App Store! If it's popular, I'll upload it to the Google Play store as well. It's free and doesn't have any ads! I'm trying to become a freelance app developer (I'm self taught) and I'm really happy to have this one on my portfolio! :)

  • Wessel Conway

    Wessel Conway

    Il y a 2 jours

    I love the comments that say "I'll mark every day here. Day 1: Complete. Day 2: Complete. .... .... .... "Commented posted 1 week ago"

  • crafterboy697


    Il y a 2 jours

    Probably not the best video to watch at midnight....

  • Santiago Patiño Zuleta

    Santiago Patiño Zuleta

    Il y a 2 jours

    fuck IT am doing the complete challenge.

  • Hxfeez


    Il y a 2 jours

    I sweat eating spicy food, eating spicy food for 100 days challenge it is

  • Leonardo Lamonatto

    Leonardo Lamonatto

    Il y a 2 jours

    Day one 🇧🇷✔ check!! Let's go, 99 left!

  • lvl1 runner

    lvl1 runner

    Il y a 4 jours

    its been 11 days since i started this and I kept going and going

  • Kirnan Lewis

    Kirnan Lewis

    Il y a 4 jours

    Thank you

  • Rxyas


    Il y a 4 jours

    Please help me cus i have no motivation aha Per like I'll do 5 situps :)

  • Telonia


    Il y a 4 jours

    already been on a 10km run today, so nop

  • handez


    Il y a 5 jours


  • SupremeBephen


    Il y a 5 jours

    Saw a lot of these. Every like I’ll do 5 push-ups

  • koi


    Il y a 5 jours

    Nice. Sadly I can't join until my foot heals. How long will this go on for?

  • PercifulHD


    Il y a 5 jours

    Bro it’s 3 in the morning if I get up and do burpees my mum Will dead ass come in and beat me I’ll start tomorrow thanks for the inspo ❤️❤️

  • Francis Ezekiel Gerones

    Francis Ezekiel Gerones

    Il y a 5 jours

    im gonna do 1 push up every onelike

  • John Titor

    John Titor

    Il y a 4 jours

    epic gamer win

  • Cowboy Tech

    Cowboy Tech

    Il y a 5 jours

    Need this soo bad! Im in !

  • Ash & jaz

    Ash & jaz

    Il y a 6 jours

    why’d i cry during this video

  • Dane Hunt

    Dane Hunt

    Il y a 6 jours

    You guys are such an inspiration to the FRdownload community and you should really adress the coral read problem

  • B vs R

    B vs R

    Il y a 6 jours

    I’m doing this and I am ten

  • Pheonix


    Il y a 6 jours

    i'll just play fortnite for 100 days

  • Teak Freeman

    Teak Freeman

    Il y a 6 jours

    just turn off the fan/AC in your room. ez sweat

  • Jesus caminero

    Jesus caminero

    Il y a 6 jours

    “Yestheory” just became “fit theory” or “fit yes theory”

  • A Hexagonian

    A Hexagonian

    Il y a 6 jours

    Did he lose his american accent?

  • Pascal Zoghbi

    Pascal Zoghbi

    Il y a 6 jours

    feel like this challenge is going to be hard for Australians considering its winter right now ahaha

  • Tom Ritter

    Tom Ritter

    Il y a 6 jours

    I’m paraplegic. Hundred days of sitting in a wheel chair

  • ZenMasTa


    Il y a 6 jours

    Got out the office strted runing = got fired.

  • John Titor

    John Titor

    Il y a 4 jours

    It's fine as long as you were sweating

  • Unknown Time

    Unknown Time

    Il y a 6 jours

    *Watches at 2 AM* Hops onto Fortnite and sweats profusely

  • Jared Bailey

    Jared Bailey

    Il y a 7 jours

    Rip watching this at 1am all snuggled up in my bed and I’m Supposed to sweat

  • G4gangstaGames 64

    G4gangstaGames 64

    Il y a 7 jours

    One like = one pull up

  • Riley Chung

    Riley Chung

    Il y a 7 jours

    I'm totally gonna do this... but first I gotta get through exams 🤣🤣

  • Kralixo


    Il y a 7 jours

    I’m for sure doing this, for the good of my own mental well being, and physical. My grandfather died a few years ago, from cancer, and watching him slowly drift away for all those years was horrible, and when ‘the day’ finally came, it was even worse. I came downstairs after hearing a bang, and he was laying on the ground, right in the living room. We had him on hospice for a while before that. I tried to help him up, and I was hysterical, and I couldn’t do it. I blamed myself for not being downstairs to help him up, I blamed myself for so long, even though there was no way I could have prevented his death. That was my low point in life, and I made lots and lots of poor choices. It’s time for me to change my life, no excuses, it’s going to happen. I’ll always remember him, but I can’t let the thought of it drag me down any more. Changes. Will. Happen

  • adam nathan

    adam nathan

    Il y a 7 jours

    I'm on day 4 of the challenge... I was too sick to complete day 5, and I was just really do day 6... I hope tomorrow morning (day7) I'll complete day 5

  • 1,000 subs with a few vids

    1,000 subs with a few vids

    Il y a 7 jours

    Did it! I hopped in the sauna for 100 days straight!

  • P J

    P J

    Il y a 7 jours

    For every like I’ll do 10 sit-ups...

  • Chashmie Piller

    Chashmie Piller

    Il y a 7 jours

    I challenge @ Yes Theory to live like a Orthodox Jew for 24 hours

  • Sarah Garner

    Sarah Garner

    Il y a 7 jours

    Amazing video and awesome challenge, but a huge shout out to YesTheory editors!! The quality and editing of this video is second to none!

  • MightyMermaid


    Il y a 7 jours

    Does laying in the sun sweating count? lol Just kidding. I'd love to take part in the challenge but I can't because of chronic illnesses that knocked me out. I miss doing sports. But I enjoy watching your videos and seeing how you inspire so many people =) All the best for your current challenge.

  • Christopher Marcum

    Christopher Marcum

    Il y a 7 jours

    Gonna do 100 days, but I want to challenge myself farther. Played sports all through out high school but have recently let myself go, so fuck it. Every like is an hour at the gym. Most I’ll do a Day is 3 hours a day, for a max of 15 hours a week. Let’s see how long I’ll end up working out 😐

  • ikehys


    Il y a 7 jours

    Dang I’m going out for a run now

  • Edgeshot


    Il y a 7 jours

    “Drop everything you’re doing and go sweat” Proceeds to do 20min of jump roping, still no sweat anywhere visible with clothes 👀 Fml.

  • BakuDeku Madlad

    BakuDeku Madlad

    Il y a 7 jours

    Things are always changing.

  • The One Called Noob

    The One Called Noob

    Il y a 7 jours

    Im in! Add more things that I will do by liking! For every likes I'll do: -250 Meter run -5 Push-ups -10 sit-ups -15 squats -20 jumping jacks Daily! Promise i'll do it and i'll update everytime i do it. I'll start by liking my own post.

  • Formerly Big Rob

    Formerly Big Rob

    Il y a 8 jours

    I just committed myself to the #100DaysofSweat and I already uploaded my first video! I'm filming each day! Thank you so much for the inspiration to keep losing, at -280 lbs down already! #YesTheory #FormerlyBigRob

  • I'm Addictionz

    I'm Addictionz

    Il y a 8 jours

    Great so i can just walk to the bathroom

  • Omar Guevara

    Omar Guevara

    Il y a 8 jours

    I just saw this video and I was on my way home from the gym did still counts or do I ha e to sweat again D:

  • yan pascal

    yan pascal

    Il y a 8 jours

    *Motivate me to get in shape* *For every like I will do 2 pull-ups*

  • Gabrielle Fouad

    Gabrielle Fouad

    Il y a 8 jours

    I don’t sweat bc my disease...

  • EBoi TDS

    EBoi TDS

    Il y a 8 jours

    make an app called '100 day sweat'

  • Liliana Hetherman

    Liliana Hetherman

    Il y a 8 jours

    You guys should invite like 20 people from different countries to all fly out to cali and stay in an air bnb together and go sightseeing and do crazy stuff. that'd be one of the sickest videos ever!!!

  • Adrenalin Cankie

    Adrenalin Cankie

    Il y a 8 jours

    Day 8.

  • Thijs Brundel

    Thijs Brundel

    Il y a 8 jours

    This challnege is ez, i am already sweating when i hit 120 bpm for about a minute

  • Altaranalt


    Il y a 8 jours

    7 days in. Absolutely wrecked, but I'm not giving up! 93 days left to go. Let's go!

  • Iron Will

    Iron Will

    Il y a 8 jours

    My Guinness World Record Marathon Run attempt is in 91 days, so this seems like a good goal to keep me motivated in training for it! I'll be doing a video about it next week :)

  • leonard Chan

    leonard Chan

    Il y a 8 jours

    I lost 20 kg since the month December and I still want to push myself, my biggest difficulty is doing pushups my maximum is only 5 :( and tips for me?

  • leonard Chan

    leonard Chan

    Il y a 8 jours

    @DerDude thanks man I will try it out!

  • DerDude


    Il y a 8 jours

    Start with 50 situps every morning and before you go to bed. This helped me improve my endurance. I can just do 13-15 pushups but before the situp-endurance training i could barely do 7. Good luck.

  • WhiteGhost 99

    WhiteGhost 99

    Il y a 8 jours

    Today I started 30 days challenge with things I did not do, simple but new things for me. Wish me luck

  • Queen Mer

    Queen Mer

    Il y a 9 jours

    “Drop everything you are doing to drop a sweat” Me: *looks at clock* 1:00 am “Looks at bowl of cereal in front of me” 😓

  • Siddhay Manjare

    Siddhay Manjare

    Il y a 9 jours

    Let's do iyt

  • Lauren P

    Lauren P

    Il y a 9 jours

    sorry, i’m on an exercise restriction lol

  • Beau Beltran

    Beau Beltran

    Il y a 9 jours

    I have hyperhydrosis so I always sweat 🤪

  • Tayden Beerman

    Tayden Beerman

    Il y a 9 jours

    Can you give me 50$ because it’s my birthday on June 18th

  • Asha Khemani

    Asha Khemani

    Il y a 9 jours

    Hi I am from India Mumbai, I am in for 100 daysofsweat

  • Zahraa Al-Mohammed

    Zahraa Al-Mohammed

    Il y a 9 jours

    Im enlightened

  • Jade Belmonte

    Jade Belmonte

    Il y a 9 jours

    I've seen this, so for every like i'll do 5 sit ups

  • Gek Gamerdk

    Gek Gamerdk

    Il y a 9 jours

    Fuck it, i'm joining while doing the one punch man

  • Kasi Anto

    Kasi Anto

    Il y a 9 jours watch this guys. You gonna love it ;)

  • Feli Modlmayr

    Feli Modlmayr

    Il y a 9 jours

    I would do it but My toe is broken

  • AR l Audio Reaction

    AR l Audio Reaction

    Il y a 9 jours

    OK, lets do THIS!!!

  • SubModzAcc


    Il y a 9 jours

    well time to get some lube for the 100daysofsweat

  • Curiosity Culture

    Curiosity Culture

    Il y a 9 jours

    Super inspiring! This oddly inspired me to take on a 100 days of writing daily since I already exercise. Thanks for the push :) Sending you all good vibes

  • あおぞらAozora_


    Il y a 9 jours

    For every like I will do 3 pushups

  • rach_mollie


    Il y a 9 jours

    I started 15/06/2019 and I’m about to change my life #yestheory

  • Nanu Gupta

    Nanu Gupta

    Il y a 9 jours

    1 push for 1 like

  • Stephen Mendoza

    Stephen Mendoza

    Il y a 10 jours

    I this tried this before I was my 99th day I was at my soccer game and I broke my ankle but I did sweat before that so I finished .this was a month ago I can walk again barely

  • Chase Bailey

    Chase Bailey

    Il y a 10 jours

    This is why Yes Theory is the best channel on FRdownload!

  • tyler Blackmar

    tyler Blackmar

    Il y a 10 jours

    I need to go 0 days without jerking off .. day -1 here we go lol

  • Cx WoNDeR

    Cx WoNDeR

    Il y a 10 jours

    I already sweat... Ive been doing it for 6 years cus im gonna be a sr in HS. Sports be hard sometimes