People who stay up late at night tend to gain weight because their digestive systems are not keyed to metabolize food, so the best thing you can do for yourself is to try and turn in early and get at least 7 hrs of sleep a night. Sleep is when the body repairs tissue damage and creates immune cells and mood elevating hormones.
Sleep problems are directly linked to anxiety and depression so catching some natural sunlight during the day is one of the ways to help you have a better sleep. Taking 1 mg of melatonin daily about 60 minutes before bedtime helps you sleep more soundly through the night. Melatonin is a powerful cancer fighter.
Exercise is another way to help you have a better sleep, it boosts your metabolism and improves your mood and gives you more energy during the day.
Women tend to feel guilty for all the things they haven't accomplished through the day, so they tend to burn the candle at both ends, so to speak. The best thing she can do for herself is to turn off the computer or TV an hour before bedtime, have a nice relaxing bath with Epsom salts, and crawl into bed with a good book.
Putting a few drops of essential lavender oil on a handkerchief and tucking it into your pillowcase also helps you relax.
Do not drink caffeine or alcohol before bed, instead have a nice cup of hot milk.
I hope that these tips will give you a well deserved sleep.