A 2026 study found that drinking two to three daily cups of caffeinated coffee, or one to two daily cups of caffeinated tea, was linked to better cognitive health and lower risks of dementia.
Resistant starch causes smaller blood sugar spikes than regular starches, and feeds beneficial gut bacteria. You can increase the resistant starch content of starchy foods by cooking and chilling them, though overall diet quality matters more to blood sugar control than this trick alone.
While protein is essential to help prevent muscle loss as you age, other nutrients matter, too. Carbohydrates, magnesium, iron, omega-3 fats, and vitamin D work together to support muscle function and prevent muscle breakdown. Getting enough water is also essential for muscle performance and function.
Shoulder impingement occurs when tendons or bursae are compressed, often causing pain when reaching overhead or behind you. It’s linked to poor posture, weak rotator cuff muscles, and tight chest muscles. Strengthening, posture correction, and stretching usually relieve symptoms.
Total knee replacement can relieve pain and restore function for people with knee osteoarthritis. Innovations, such as robotic-assisted surgery, personalized 3D-printed implants, and enhanced protocols for rehabilitation and pain control, aim to further improve results.
“Bone-on-bone” is a common description for advanced osteoarthritis, when the cartilage in a joint wears away completely. Symptoms, including pain, stiffness, and limited motion, can be managed with physical therapy, weight loss, pain medications, injections, and possibly joint replacement.
A 2026 study found that low vitamin D levels may increase the risk of hospitalization for respiratory infections (such as colds, flu, pneumonia, and bronchitis) by as much as 33%. Sunlight, foods containing vitamin D, and supplements help maintain healthy vitamin D levels.
A large 2026 study estimated that adding just five minutes a day of moderate to vigorous activity might prevent up to 10% of deaths during an eight-year period. Sitting for 30 minutes or less might prevent up to 7% of deaths.
A 2025 study suggests that very low levels of lithium in the brain might be linked to Alzheimer’s disease. In mice, certain lithium supplements seemed to protect memory and the brain. But scientists don’t yet know if lithium pills are safe or helpful for people.
A 2026 study suggested that people who stop taking weight-loss medications rapidly regain weight and lose heart health benefits associated with the drugs.