Some technologies can make it harder to sleep, while others can help. Here's what you need to know.

If you're having trouble sleeping, it could be because of the technology you're using. Studies show that using technology for an hour and a half can lower your melatonin levels, making it harder to fall asleep at night. Melatonin levels drop most when people use interactive technology, like scrolling through their phones or playing video games, rather than passive technology, like listening to music. The same research shows that any br....