A. Your listening skills
Explanation: This means you pay more attention to the things around you, like when studying.
Eat colorful fruits and vegetables, like berries, broccoli, carrots, etc. Don't stare at a screen too close, and take a break every hour. Drink lots of water, and try to look far distance.
The first levels of myActivity Pyramid is - everyday activities.
Take the medication as directed daily and this will not prevent STI's