Systolic blood pressure is the first number heard with a stethoscope or displayed on a digital blood pressure machine when a blood pressure reading is being performed. It is the top number of a blood pressure reading.

Non-renewable energies are those that do not self-sustain naturally. Examples of non-renewable energies are coal, oil and natural gas.

Ankle dislocations almost always occur with a sprain or fracture. When an ankle is dislocated, the adjoining bones in the joint are displaced to the point they no longer have contact with each other.

The prostate gland is part of the male reproductive system. It surrounds a portion of the urethra and makes some components of semen. As a man ages, the prostate sometimes enlarges in a condition called benign prostatic hyperplasia, or BPH, a noncancerous condition.

Ginger root, the underground rhizome from the tropical Zingiber officinale plant, has been used since antiquity as a food and herbal medication. Ginger is revered in Ayurveda and Traditional Chinese Medicine for its carminative, or gas-reducing, and anti-inflammatory properties.

Heart rate is controlled by electrical signals sent through heart tissue. A healthy adult heart rate is 60 to 100 beats per minute at rest. Many people, however, experience an elevated heart rate and for a variety of reasons.

Your cardiovascular system consists of your heart, blood vessels and blood. All of these work together to deliver nutrients and oxygen to, and remove waste from, the cells of your body.

Urinary tract infections result when bacteria, such as Eschericia coli or the entrococci family of bacteria, get into the urinary tract. Urinary tract infections in males typically occur in older men, particularly men with prostate problems.

Dark spots on your gums can be signs of harmless or deadly conditions, depending on its nature. Some oral cancers manifest as dark spots in their early stages. Serious gum disease can also lead to the existence of dark spots or formations on your teeth and gums.

Metoprolol tartrate (Lopressor) is a medicine most commonly used to treat high blood pressure. It belongs to a group of medicines called beta-blockers. Metoprolol works by relaxing blood vessels and slowing the heart rate.

Dry skin can occur for many reasons. Sometimes, it can be genetic, forcing individuals to deal with the chronic problems associated with dehydrated, dry and irritated skin. It is common for dry skin to be sensitive and sometimes painful, often becoming flaky and itchy.

As a parent, it's tough to decide whether to give birth control to your sexually active teenager. Even though birth control is a proven method for preventing sexually transmitted diseases and unwanted pregnancy, some parents struggle with moral and ethical implications surrounding the issue.