Muscle strains - Symptoms and causes - Mayo Clinic
Oct 11, 2022 · Muscle spasms Swelling Muscle weakness When to see the doctor Mild strains can be treated at home. See a doctor if your symptoms worsen despite treatment — especially if your pain …
Strength training: Get stronger, leaner, healthier - Mayo Clinic
Apr 29, 2023 · Lean muscle mass naturally diminishes with age. Your body fat percentage will increase over time if you don't do anything to replace the lean muscle you lose over time. Strength training …
Statin side effects: Weigh the benefits and risks - Mayo Clinic
Jul 21, 2025 · Very rarely, statins can cause life-threatening muscle damage called rhabdomyolysis (rab-doe-my-OL-ih-sis). Rhabdomyolysis can cause extreme muscle pain, liver damage, kidney failure, …
Performance-enhancing drugs: Know the risks - Mayo Clinic
Jun 27, 2023 · Helps build muscle. Causes features such as facial hair and a deeper voice. The anabolic steroids used by athletes are often forms of testosterone made in a lab. Some people use anabolic …
Peripheral neuropathy - Symptoms and causes - Mayo Clinic
Motor nerves that control muscle movement. Autonomic nerves that control functions such as blood pressure, sweating, heart rate, digestion and bladder function. Symptoms of peripheral neuropathy …
Amyotrophic lateral sclerosis (ALS) - Symptoms and causes
Mar 17, 2026 · Overview Amyotrophic lateral sclerosis (a-my-o-TROE-fik LAT-ur-ul skluh-ROE-sis) is a nervous system disease that affects nerve cells in the brain and spinal cord. Also known as ALS, the …
Soft tissue sarcoma - Symptoms and causes - Mayo Clinic
Dec 4, 2024 · Soft tissue sarcoma is a rare type of cancer that starts as a growth of cells in the body's soft tissues. The soft tissues connect, support and surround other body structures. Soft tissues …
Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS)
Jan 17, 2026 · Overview Myalgic encephalomyelitis/chronic fatigue syndrome, also called ME/CFS, is a complicated condition. It causes extreme fatigue that lasts for at least six months. Symptoms worsen …
Aerobic exercise: How to warm up and cool down - Mayo Clinic
Aug 31, 2023 · Cooling down doesn't seem to help reduce muscle stiffness and soreness after exercise, but more research is needed. There's debate about whether warming up and cooling down can …
Growing pains - Symptoms & causes - Mayo Clinic
The most likely cause of growing pains is thought to be muscle pain at night after too much physical activity during the day. Overuse of the legs from activities such as running, climbing and jumping can …