Everything Testosterone Does to Men (And a Little Bit to Women...)

All the respect to these heroes that donated their bodies to science

A book that changed my life in ways that I never could imagine is "Secret Testosterone Nexus of Evolution".Drop whatever you're doing right now and go find that book. Trust me after I implemented things from the book my testosterone levels went beast mode

The ER doc just wants to tell people he's a Dr. I hate when people start a response..... "As a .... Fill in the blank."

I've learnt more from this channel than I did during my years at uni. Keep up the good work!

I work at a generally inundated ER in Boston and, although we get a lot of visits from patients who would be better served by Urgent Care or Outpatient treatment, I’ve never seen anyone come in with emergent low testosterone as the reason for their visit.

Clarification is great, but don’t let it define a portion of your videos. The current format is amazing and concise!

I appreciate your tone, positivity, and the thorough ways that you present the content here. Your response to the feedback from the "Boston ED physician" at the end was tasteful and not off-putting. I appreciated this video, per usual, Jonathan.

Menopause, once the first months of discomfort have passed, is a blessing. It's the end of menstrual pain!

I was a desk worker retrained 5 years ago as a PT (no where near level of a doctor) but ur videos on the CV system, muscles, all that jazz and how it actually works provides me MORE gifted detail than my actual qualification. Honestly I can’t thank u enough for bringing this level of knowledge and detail to a profession that in most places doesn’t get that detail unless u can afford uni and do sports science. I’ve recommended u to clients and collegues because it’s so enlightening. Also makes us humble- we whinge and complain when we can’t deadlift our body weight on a bar but ur channel has highlighted how many body processes and body CELLS and hormones and systems need to be functioning perfectly enough for us to even try. Having the hissy fit is a gift. So is the channel. Please keep it up :) ❤ Love, UK PT 🇬🇧

I like that you added the ER doc part in and clarified things

A vid like this takes real balls to produce.

Love the responding to emails, comments, etc., when of course done in a mature way and while staying on topic. Thank you!

Thankful for the doctors who figured out how to synthesize this stuff as someone on HRT

I appreciated you addressing the email comment with the clarification that used. I think your approach was a simple, kind, & effective way to respond.

I think your response to the viewer was handled well. Also thanks for these videos I have been learning so much!

One of my best friends just started HRT and has really enjoyed testosterone so far. It’s so fascinating learning about what he’s experiencing!

I thought the the response to the email was fine and very reasonable. I thought you drawing the estrogen graph was one of the funniest things I've seen in days, so thank you for that! :D

great work responding and clarifying to the email

I enjoy the feedback from the email. It gives a different take on how other people view your content and it doesn't take away from the learning aspect it provides dialogue

This channel has revolutionized how I see and understand my body! I’m not necessarily against answering what other people say but would suggest maybe doing a section dedicated to that! The overall tone of your videos is awesome, very light and clear and that’s one of the things I like the most but maybe showing a side a bit more spicy when we answer can be super interesting if done in the “right place” (note that I don’t think this was the wrong one, but if I want to see you answer I’d like you to do it as free and completely honest as possible 😅) thanks for all you’ve shared so far!