Category: harvardhealth_news_UNDEFINED

Tai chi uses a series of gentle, flowing motions and slow, deep breathing to exercise the body and calm the mind. It’s good for health in many ways, especially for balance, which improves as the body becomes more attuned to changes in movement. Tai chi can be practiced outdoors as well as indoors, which is helpful during winter months. To get started in a tai chi practice, it helps to take a class with an instructor who supervises practitioners’ progress. Classes can be found at wellness centers and health clubs.

Eating two eggs per day doesn’t appear to raise harmful LDL cholesterol, as long as people follow a diet low in saturated fat. Although eggs are high in cholesterol, dietary cholesterol doesn’t have much of an effect on the amount in a person’s bloodstream. But excess dietary saturated fat does raise blood cholesterol, which is why people should limit their saturated fat to 7% of their daily calories.

Heart rate variability (HRV) is a measure of the tiny fluctuations in timing from one heartbeat to the next. Higher values are linked to better fitness levels and stress resilience.

Hyperacusis describes sensitivity to some or all sounds, no matter the volume. Depending on the person, sounds might be uncomfortably loud; cause pain in the ear, head, or another part of the body; trigger negative emotional responses; or make someone dizzy. These reactions might be due to irritated or overactive nerve fibers or muscles in the ear. While doctors have few treatments for hyperacusis, certain strategies help, such as avoiding sound triggers, wearing hearing protection, and engaging in sound therapy.

Many devices that measure blood pressure without an inflatable arm cuff are in development, including a wristband recently cleared by the FDA for over-the-counter sale. It relies on a light-based sensor to detect changes in the amount of blood flowing through the vessels of the inner wrist, a technique known as photoplethysmography. But the devices have to be periodically calibrated, and as yet, there are no standards to validate the accuracy of cuffless devices.

Flashes and floaters are eye problems that become common with age. Over time, they may become less noticeable, but people should seek medical care if symptoms worsen, as this could be a sign of a retinal detachment.

Approximately 50% of people who begin an exercise program quit within the first six months, according to some estimates. Declining motivation is usually the main reason, but there are ways that people can approach their fitness to help them stay focused and committed. These include recognizing the value of staying healthy, enlisting a workout buddy, adopting specific exercises to reach individual goals, matching workouts to their personality, and finding inspirational figures.

Habits that promote cardiovascular health are linked to benefits in nearly every organ system and improved function throughout the body, according to a 2025 review of 483 studies.

For some people with atrial fibrillation, cold drinks and foods can trigger a bout of the rapid, irregular heartbeat that characterizes the disorder. Avoiding those triggers nearly always prevents this phenomenon, dubbed “cold drink heart.”

Women live longer than men. However, that longevity gap in the United States has increased to 5.8 years, the largest gap since 1996, according to a 2024 study. Why the widening gap? Researchers believe that in many cases, women are better than men at addressing certain health needs that contribute to longer lives, such as losing excess weight, quitting smoking, getting regular skin check-ups, and not ignoring mental health issues.