What healthy habit has been easiest for you to maintain?

Drinking a lot of water. I have definitely been able to keep up with drinking a bunch of water. I particularly like it ice cold, and I drink SO much. Because of a medication I’m on, it is easy for me to get dehydrated. So I know how important it is to keep up a steady stream of water in my system. My doctor also recently told me I need more salt in my diet, so I occasionally drink a Gatorade too which has electrolytes, and also helps with hydration.

eat healthy food and do physical exercise, at least walking

Eat on time is also an important steps for a healthy lifestyle.

I go for walks every day and have always done that. I buy fresh fruits and vegetables for us to eat all the time.

I would say stopping smoking. I stopped years ago and never started again.

This is so true, starting is easy but keeping it up is the real work. For me it's drinking water first thing before anything else, been doing that for years now and it just stuck. Everything else I try comes and goes but that one never left me.