A peak flow meter measures how fast you can push air out of your lungs. This tells you how well you are controlling your asthma. Measure your peak flow as many times a day as your doctor tells you to.

If your loved one will use a wheelchair, you need to know about transfers. For safety's sake, learn how to help your loved one in and out of the wheelchair. One basic method is shown here.

The weather. Food additives. Illness. Many things may set off your asthma symptoms. Here's a look at some common asthma triggers, and tips to help ease your symptoms.

If your loved one will use a wheelchair, you need to know about transfers. For safety's sake, learn how to help your loved one in and out of the wheelchair. One basic method is shown here.

Frequent and thorough handwashing is the best way to prevent infection.

Doppler ultrasound uses harmless sound waves to evaluate and create pictures of blood flow inside your blood vessels. This test can detect narrow or blocked arteries and veins due to an abnormality pressing on them or blood clots inside.

An inhaler is a pressurized sprayer that delivers a measured amount of medicine. Follow these steps if you're using an inhaler.

A TIA (transient ischemic attack) is an early warning that a stroke (also called a brain attack) is coming. A TIA is a temporary stroke. It causes no lasting damage. But the effects of a stroke, if it happens, can be very serious and lasting. Here are symptoms to watch for.

A bone density study helps diagnose osteoporosis (bone thinning). Here's what to expect.

Blood lost during surgery may need to be replaced. Donating your own blood ahead of time is sometimes best. Depositing your own blood before surgery is called autologous blood donation.