How do bats see and fly around?

is there a relationship between Ulcer and pregnancy?

is there an underlying condition for heartburn and what can be used to cure it?

How do I know If I’m having ulcer pain? Can it kill?

what are the risks of being obese? How do you know you are getting obese?

I often feel dizzy when I’m on my period, the blood is too much how can I stop this?

my period goes on and off and I never know hen to expect it, is this normal?

What does oxygen therapy mean? How does it work?

Will my eyes be affected if I stare at my laptop for a very long time?

what causes them?