Sleep Archive

Circadian rhythms, which are hardwired into nearly every cell of the body, regulate the heart and blood vessels. Disruptions to this rhythm—from shift work, poor sleep, or unhealthy habits—can raise the risk of cardiovascular disease. For example, heart attacks are more likely to occur on Mondays than any other day of the week. That’s because people tend to stay up later than usual and then sleep in the next day. On Monday morning, when they have to wake up early again for work, the change may cause subtle changes in blood pressure, hormone secretion, and metabolism that raise heart attack risk.

A variety of health conditions can be influenced by sleep position. Side sleeping helps people breathe easier, hampers heartburn, and is safer during pregnancy, but it may aggravate joint pain. Back sleeping keeps the spine straighter, but can intensify breathing problems, worsen heartburn, and cause other problems during pregnancy. People should talk to their doctor if they have a health condition that could be affected by the way they sleep, but otherwise can sleep in the position that is most comfortable for them.

Insufficient sleep triggers a long list of physiological and hormonal changes that contribute to heart disease. For example, a lack of sleep can cause increases in blood pressure, blood sugar, inflammation, and weight. Doctors recommend getting at least seven hours of uninterrupted sleep per night. Strategies that promote better sleep include going to bed and waking up at the same time every day, creating a healthy sleep environment, and turning off electronics an hour before bedtime.

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.

Influencers, news headlines, and well-meaning friends and family offer conflicting advice on wellness. Quick fixes and fads may do little for our health, and some even prove harmful. Try to work these five simple habits that can boost health and wellness into your everyday life.

A 2025 study suggests that sleeping nine or more hours nightly is associated with worse cognitive performance, an effect that’s stronger among people with symptoms of depression.

Getting a sufficient amount of sleep is vital for heart health, but sleep continuity, timing, and regularity may also be important. Irregularities in these lesser-known dimensions of sleep health are not considered problems unless they impair a person’s ability to function and quality of life. But emerging evidence suggest these sleep issues may affect cardiometabolic health. A sleep diary can help uncover potential issues.

Approximately 50 million adults experience some daily pain. These people usually encounter fluctuations in pain during the day, but in many cases, the pain worsens at night, disrupting sleep. Many strategies can be adopted to prevent and manage nighttime pain, such as doing a pre-bedroom relaxation routine, creating a healthy sleep environment, reframing negative thinking, changing sleeping positions, and using supportive pillows.