Hyperthyroidism is an excess of thyroid hormone resulting from an overactive thyroid gland. Symptoms can include

• increased heart rate,

• Migraine headaches are severe headaches that are sensitive to light, sounds, and smells. Some people who suffer from migraines also have severe

• Parkinson's disease is a slowly progressive neurological disease characterized by a fixed inexpressive face, a tremor at rest, slowing of voluntary movements,

• Pregnancy planning is an important step in preparation for starting or expanding a family. Planning for a pregnancy includes:

  • Taking
• Stress
  • Stress occurs when forces from the outside world impinge on the individual. Stress is a normal part of life. However, over-stress, can be harmful. There
• Obesity
  • Obesity is the state of being well above one's normal weight. A person has traditionally been considered to be obese if they are more than 20% over their
• Congestive Heart Failure (CHF) Symptoms, Stages, and Prognosis
  • Congestive heart failure (CHF) refers to a condition in which the heart loses the ability to function properly. Heart disease, high blood pressure, diabetes,
• Restless Leg Syndrome
  • Restless leg syndrome (RLS) is a common cause for painful legs that typically eases with motion, and becomes worse and more noticeable at rest. This characteristic
• Sleep Apnea
  • Sleep apnea is defined as a reduction or cessation of breathing during sleep. The three types of sleep apnea are central apnea, obstructive apnea (OSA),
• Menopause
  • Menopause is the time in a woman's life when menstrual periods permanently stop, also called the "change of life." Menopause symptoms include hot flashes,
• Pinworms
  • Pinworm infection is an intestinal infection caused by a pinworm, seatworm, or threadworm. Female pinworms leave the intestine through the ankus and deposit
• Sleep Disorders (How to Get a Good Night's Sleep)

  • A number of vital tasks carried out during sleep help maintain good health and enable people to function at their best. Sleep needs vary from individual

• Biorhythms
  • Biologic rhythms, or biorhythms, are how our bodies respond to the regular phases of the sun, moon, and seasons. A medical chronobiologist studies how
• Urinary Incontinence
  • There are many types of urinary incontinence (UI), which is the accidental leakage of urine. These types include stress incontinence, urge incontinence,
• Dementia
  • Dementia is defined as a significant loss of intellectual abilities such as memory capacity, severe enough to interfere with social or occupational functioning.
• Jet Lag
  • Jet lag (desynchonosis) is a temporary disorder that results from travel across time zones. Symptoms include anxiety, constipation, headache, nausea, dehydration,
• Insomnia Treatment (Sleep Aids and Stimulants)
  • Insomnia is difficulty in falling or staying asleep, the absence of restful sleep, or poor quality of sleep. Insomnia is a symptom and not a disease. The
• Holiday Depression, Anxiety, and Stress
  • Though the holidays are a fun time for most, for others, they're a sad, lonely and anxiety-filled time. Get tips on how to avoid depression and stress
• Seasonal Affective Disorder (SAD)
  • Seasonal affective disorder is a type of depression that tends to occur as the days grow shorter in the fall and winter. Symptoms of seasonal affective
• Smoking (How to Quit Smoking)
  • Smoking is an addiction. More than 430,000 deaths occur each year in the U.S. from smoking related illnesses. Secondhand smoke or "passive smoke" also
• West Nile Virus
  • West Nile virus (West Nile encephalitis) is a brain infection caused by a virus. People become infected with the virus after they're bitten by a mosquito
• Posttraumatic Stress Disorder
  • Post-traumatic stress disorder (PTSD), a psychiatric condition, can develop after any catastrophic life event. Symptoms include nightmares, flashbacks,
• Narcolepsy (Definition, Symptoms, Treatment, Medication)
  • Causes of narcolepsy, a chronic disease of the central nervous system, have not been fully determined. Some theories include abnormalities in hypocretin
• Chronic Pain
  • Chronic pain is pain (an unpleasant sense of discomfort) that persists or progresses over a long period of time. In contrast to acute pain that arises
• See All Related Diseases & Conditions »