Help me convince my roommate not to go on anti-depressants.

My roommate recently told me about how their therapist has been trying to start them on anti-depressants.

Thing is, they have a pretty bad diet, get zero exercise and have an erratic sleep schedule. They also smoke tons of weed and are currently on HRT. (!cuteandvalid any input on if that stuff makes you depressed?). Some positives are they have a very good job and work long hours, and have a supportive girlfriend.

Anyway I want to try and get through to them that all of the (negative stuff) above is likely the cause of their depression, and anti-depressants are a band-aid on a bullet-hole. Unfortunately I feel like I won't be able to get through to them, since I feel like anything I say will come across as me trying to moral-lecture them or telling them how to live their life.

I know this isn't really a serious forum, but if you guys have any experience with this and could maybe come up with an approach that I could take to explain this stuff to them i'd appreciate it, since I want to try and save someone from the SSRI-zombie apocalypse.

Thanks.