The video is a Q&A session by Doctor Mike, where he responds to various questions and comments from his viewers. Some of the topics discussed include:
* Why men have nipples (he doesn't know the answer but finds it an interesting question)
* Whether doctors can diagnose and treat themselves (he says it's not recommended due to potential bias)
* The dangers of vaping (he's not a fan of vaping and thinks it's not a healthy alternative to smoking)
* How to clean ears properly (he advises against using Q-tips and instead recommends earwax dissolving solutions or consulting a doctor)
* His thoughts on makeup (he thinks it's fine in moderation but not necessary)
* What causes hiccups and how to cure them (he suggests eating a spoonful of sugar)
* The safety of using microwaves (he says there's no risk and people should stop worrying about it)
Doctor Mike also shares some personal anecdotes and opinions, and encourages his viewers to keep asking questions and sharing their thoughts.
Here are the facts extracted from the text:
1. The video "Grey's Anatomy" has reached 10 million views.
2. The percentage of smokers in the United States has dropped into the teens.
3. Nicotine is an addictive substance that constricts blood vessels.
4. Doctors should not prescribe themselves medication, as it is ethically questionable.
5. Inserting Q-tips into the ears can push earwax further in and irritate the canal.
6. Using a squatty potty is not necessary for effective bowel movements.
7. Microwaves do not pose a risk to health, according to current research.
8. Writing a letter of gratitude can decrease symptoms of anxiety and depression in people.
9. The diaphragm is the muscle immediately below the lungs.
10. Hiccups are caused by a spasm in the diaphragm.
11. Eating a spoonful of sugar can cure hiccups, according to the speaker's personal experience.
12. Chugging a full glass of water while tilting one's head back can also cure hiccups.
13. Propylene glycol, a chemical found in some vaping flavors, can cause a condition called popcorn lung.
14. Doctors and nurses often see the effects of cancer on the body, but some still smoke due to stress and burnout.
15. Vaping can lead to nicotine addiction and other health problems, especially in non-smokers.