Sleep Archive

Research suggests that exercise is beneficial in managing insomnia, but current guidelines don't specify which types may be most effective. A 2025 study found that yoga, tai chi, walking, and running were associated with reduced symptoms of insomnia.

There are many normal reasons people's joints make clicking, popping, cracking, or other noises. Joints are also more likely to make noise when people stay still for long periods. Pain or swelling with joint noise should prompt people to see a doctor.

Evidence suggests that chewing gum can help people feel more focused and less stressed. Chewing sugar-free versions can hinder cavities. But constant gum-chewing can tire jaw muscles, and xylitol-containing gum can trigger abdominal distress.

As people get older, they may get clumsier because of multiple factors such as declining hearing and vision, loss of muscle, balance issues, and chronic health conditions. Addressing these issues can help people avoid injury from falls and other accidents.

The body's pH level supports a variety of crucial functions. Certain health conditions can create a pH disturbance. People can support a healthy pH by eating a balanced diet featuring fruits, vegetables, whole grains, lean meat, and fish.

In a 2025 randomized trial of about 1,000 people (ages 50 or older), followed for four years, those who took 2,000 international units of vitamin D₃ per day showed cellular signs that suggested they were aging more slowly compared with people who did not take the supplement. It’s unclear if this benefit would continue from taking daily pills longer than four years. Scientists do know that taking vitamin D₃ supplements is important for people with osteoporosis or with vitamin D deficiency (as determined by a blood test).

With influenza virus, a new vaccine must be developed each year to adapt to the virus's changing structure.

In robotic surgery, a surgeon controls robotic instruments that perform the operation, based on what the surgeon sees on a TV monitor. This type of surgery has many advantages: it involves small incisions, better views inside the body, and better range of motion than human hands. A research letter published in the May 2025 issue of JAMA Neurology described how robots controlled by a distant surgeon could reach in, grab, and remove blood clots stuck in a brain artery, reducing the damage from a stroke.

Spray-on sunscreens can be as effective as lotion-based sunscreens for protecting skin from harmful ultraviolet light. People using sunscreen sprays should make sure skin appears wet and shiny where they've sprayed and rub the product in before it dries.

Essential tremor is marked by involuntary shaking of one or more body parts, such as the hands, arms, legs, or head. Avoiding caffeine and stress and getting plenty of rest can be helpful. Several medications are available to ease the symptoms.