Social engagement and relationships Archive

This heart rhythm disorder is linked to thinking and memory problems. But anti-clotting drugs may lower the risk.

Bouts of atrial fibrillation, or afib — a rapid, chaotic heartbeat — make some people feel lightheaded and dizzy, while others don't notice any symptoms. But the most serious threat of this condition is the higher risk of stroke among people with afib compared with those without the disorder (see "Blood clot dangers, large and small"). Now, there's a growing recognition that people with afib also face an increased risk of thinking and memory problems — even if they do not experience a stroke.

Known as cognitive impairment, these problems include trouble remembering, learning new things, concentrating, or making routine decisions. The presumed underlying cause? Tiny blood clots that cause "silent" (that is, unrecognized) strokes and gradually injure parts of the brain involved with cognition.

Even people without insomnia can have trouble getting a good night's rest. Many things can interfere with restorative sleep — crazy work schedules, anxiety, trouble putting down the smartphone, even what you eat and drink.

The following three simple steps can help you sleep better.

Good posture is important, even during exercise. Quick posture checks before and during a core exercise routine can help you avoid injury and squeeze the biggest benefit from your workout. Here is what you need to know:

1. Stand up straight. When instructions for an exercise ask you to stand up straight, that means keeping your:
   • chin parallel to the floor
   • shoulders even (roll them up, back, and down to help achieve this)
   • arms at your sides, elbows relaxed and even
   • abdominal muscles pulled in
   • hips even
   • knees even and pointing straight ahead
   • feet pointing straight ahead
   • body weight evenly distributed on both feet.
2. Stay in neutral. Neutral alignment means keeping your body in a straight line from head to toe except for the slight natural curves of the spine. Whether you're standing or seated, that means your spine is not flexed or arched to overemphasize the curve of the lower back. One way to find neutral is to tip your pelvis forward as far as is comfortable, then tip it backward as far as is comfortable. Neutral is roughly in the middle. If you're not used to standing or sitting up straight, it may take a while for this to feel natural. A neutral wrist is firm and straight, not bent upward or downward.
3. Get the angle. When angles appear in exercise instructions, visualize a 90-degree angle as an L. To visualize a 30-degree angle, mentally slice the 90-degree angle into thirds, or picture the distance between a clock's minute hand and hour hand at one o'clock.

Achieving and maintaining good posture during your workouts takes a little practice. If possible, look in a mirror when exercising. Try to take a few moments each day to practice better posture, too.

Strengths are built-in capacities for certain thoughts, feelings, and behaviors. Everyone has these capacities to one degree or another. Your particular pattern of strengths is part of what makes you unique.

When you play from your strengths, you are likely to feel more energetic and perform better than when you are trying to use a capacity that comes less naturally. For example, one person trying to influence a local school board to ban soft drink sales might have the strength to speak up forcefully and clearly at a general meeting (despite the almost-universal fear of public speaking). Another person strong in team-building might feel uncomfortable speaking out in a meeting but could successfully build consensus among parents, nutritionists, and others to weigh the issue and come to a decision.

Is age just a number? How will medical and technology advances redefine biological aging? In this seminar, learn more about research led by scientists at Harvard Medical School about what healthy aging means, and explore discoveries that could help to improve the experience of aging.

Each spring, Harvard Medical School's Office of Communications and External Relations organizes a series of four free "mini-med school" classes for the general public in the heart of Boston's Longwood Medical Area. At the end of the seminar series, participants who attend three out of the four sessions receive a certificate of completion. Topics are selected for their appeal to a lay audience and have included the human genome, nutrition, sleep dynamics and health care access. Faculty from Harvard Medical School and its affiliate hospitals volunteer their time to present these lectures to the community.

Mind-body medicine is providing new models for wellness and therapy by combining conventional and complementary approaches to treatment. At this seminar, a panel of Harvard Medical School faculty will discuss this quickly developing approach that may help shape the future of medicine.

Each spring, Harvard Medical School's Office of Communications and External Relations organizes a series of four free "mini-med school" classes for the general public in the heart of Boston's Longwood Medical Area. At the end of the seminar series, participants who attend three out of the four sessions receive a certificate of completion. Topics are selected for their appeal to a lay audience and have included the human genome, nutrition, sleep dynamics and health care access. Faculty from Harvard Medical School and its affiliate hospitals volunteer their time to present these lectures to the community.

Obesity among children and adults dramatically increases the risk of chronic illnesses such as heart disease and type 2 diabetes. What are the contributing factors that lead to being overweight? In this seminar, Harvard Medical School doctors and researchers will address the stigma that surrounds obesity and discuss concrete methods, including changes to sleep and diet, that could help scale back this growing problem.

Each spring, Harvard Medical School's Office of Communications and External Relations organizes a series of four free "mini-med school" classes for the general public in the heart of Boston's Longwood Medical Area. At the end of the seminar series, participants who attend three out of the four sessions receive a certificate of completion. Topics are selected for their appeal to a lay audience and have included the human genome, nutrition, sleep dynamics and health care access. Faculty from Harvard Medical School and its affiliate hospitals volunteer their time to present these lectures to the community.