However, I already had a problem that I was correcting with prescription lenses. My ophthalmologist told me I needed bifocals, glasses with lenses that have a correction on the top section for my existing conditions and one below to help me with my presbyopia.

Cerebrovascular disease or stroke is a leading cause of death. According to the World Health Organization, 15 million people suffer strokes each year. Of these, 5 million die. You are at risk for a stroke if you have high blood pressure, smoke cigarettes or are obese.

Therapy involves strength training, muscle and ligament stretching, stamina training, and moderate aerobic exercise. Most therapists recommend low-impact exercises such as biking or swimming; they recommend against activities such as walking or jogging, which may put stress on muscles and joints.

Some anatomy: The knee, which is the largest joint in the body, is made up of the thighbone (femur), shin bone (tibia) and the kneecap (patella). Surfaces of this joint are covered with cartilage, a smooth substance that cushions the bones and enables them to move easily.

The coconut oil industry is working hard to win public favor. There are scientists who are backing off from the damnation of coconut oil. And then there are vegans, who abstain from animal products. Many vegans use coconut oil as a butter substitute. Coconut oil is solid at room temperature.

Human beings are highly social and suggestible; we watch each other and emulate one another. In one yawning study, scientists found that applying cold packs to the subjects’ heads almost eliminated contagious yawning. Nasal breathing, which also promotes brain cooling, had a similar effect.

The body can make all the cholesterol it needs. Most cholesterol is made by your liver. You also get cholesterol from foods such as meat, eggs and dairy products. Too much cholesterol is dangerous, because cholesterol can lead to blockages in your blood vessels.

About a month before beginning chemotherapy. you should visit your dentist because side effects are more likely in patients with unhealthy mouths. The dentist can clean your teeth, take X-rays, treat any mouth problems and teach you how to prevent oral side effects.