I know it's a big deal right now, but I don't know much about it.

I sort of stumbled into it by accident because I don't feel safe eating at work right now, so most days I don't have any food until I get home around 4:00 to 4:30 PM. I'm also usually wrapping up my evening and in bed by 9:00 PM, so I end up with a roughly five hour window in which to eat. Last weekend I tried to follow it even though I was home and found it surprisingly easy to just not eat until that time, even though it was safe for me to do so and food was available.

I was already calorie counting prior to this, but I noticed the shift to not eating at work accelerated my weight loss a little bit. It's also way easier to come in under my calorie count when I don't eat for most of the day.

Because it seems like this is working (though granted, I'm in the very early stages), and because I don't really have a choice in the matter given that I can't safely eat at work anyway, I'm interested in learning about the do's and don't's of intermittent fasting. As a beginner to this, what should I know? I am mostly interested in just making sure I'm not doing any damage to myself or creating any potential problems that I don't realize, so safety is my primary concern. Weight loss is a secondary focus, though less essential because I feel like I've got that down with calorie counting. Any insights or resources you know of would be appreciated.

My mom is almost 65 and she's pretty heavy. It has got to the point where it's affecting her life quality - she often has joint pain, heart problems, clogged arteries... She has to lose weight, basically. Problem is, I feel like she has no motivation to do so. She never even tried doing it. I researched a bit online, and it seems like older people have it harder to lose weight, not just mentally, but also physically because they have less muscle mass and stuff. Is there anyone more knowledgeable on this topic?