Healthy aging and longevity Archive

There is disagreement over whether or not there is such a thing as a cannabis withdrawal syndrome, but it's definitely real, and with increased availability of legal marijuana and other products, even those who use it medicinally need to be aware of the symptoms, and what to do if they think they have it.

People are often surprised to learn that there's more to walking than simply putting one foot in front of the other. In fact, a little technique goes a long way to making your walks more enjoyable and more effective. Technique is especially important if you are hoping to become fitter and lose weight, because it will enable you to walk faster and longer. When you're standing tall, your muscles will move through a greater range of motion for a more powerful stride. Improving your walking posture will help you to look and feel more confident, too—and you'll look slimmer before losing a single pound. It will also help alleviate aches and pains and allow you to take deep breaths for more energy.

For any type of walking

The following rules will help you maintain good form.

The hip hike is used to build hip strength if you're about to get into a running or walking program. It's easy, but you can also perform the hip hike by holding a chair to steady yourself. Make sure you're standing on a low, but stable, platform before you begin.

It's easy. Make believe your big toe is a pencil and sketch out the alphabet. These muscle movements will help build foot and ankle strength, which aids balance and helps prevents falls. You can learn more at the Harvard online course Exercises for Bone Strength.

A sauna benefits your heart health, as long as you practice sauna safety

A saunas' dry heat (which can get as high as 185° F) has profound effects on the body. Skin temperature soars to about 104° F within minutes. The average person will pour out a pint of sweat during a short stint in a sauna. The pulse rate jumps by 30% or more, allowing the heart to nearly double the amount of blood it pumps each minute. Most of the extra blood flow is directed to the skin; in fact, the circulation actually shunts blood away from the internal organs. Blood pressure is unpredictable, rising in some people but falling in others.

Saunas appear safe for most people. However, people with uncontrolled high blood pressure and heart disease should check with their doctors before taking a sauna.

The body’s circadian rhythm controls our sleep-wake cycle, so an irregular rhythm can negatively affect sleep and proper functioning, which can lead to health problems including mood disorders. The tendency to rise early or stay up late is genetically determined, but you may be able to adjust your life to better match your circadian rhythm.

It's more important than ever to consider your particular health risks before popping a nonprescription pain reliever.

Have a headache, muscle strain, or maybe arthritis pain? Don't reach for just any over-the-counter (OTC) remedy. Nonsteroidal anti-inflammatory drugs (NSAIDs) such as ibuprofen (Advil, Motrin), naproxen (Aleve), and aspirin are commonly used OTC painkillers. So is acetaminophen (Tylenol). For decades, these drugs were thought to be entirely safe — justifying the ability to purchase them without a doctor's prescription.

But the thinking on OTC painkillers has changed now that we know more about their risks. And it's especially important to navigate these medications with care. Here are guidelines to help you narrow the options.

Ask the doctor

Q. You recommend eating fish twice a week. However, I've read that fish contain toxins and microplastics. Is it really safe to eat fish?

A. Most options in life contain both benefits and risks. Foods are no exception. Eating fish has potential benefits (largely from the omega-3 fats they contain) and risks (from the toxins). Do the benefits exceed the risks? That question has been addressed by research — much of it by colleagues here at Harvard. The answers are different for different people, and for different types of fish.

Asking some simple questions can help you determine what medical research to pay attention to and when to wait for more information.

Every day there's something new in the world of medical research, and sometimes the results conflict. Eggs are good for your heart, or not. First surgery is advised to repair tears to cartilage in the knee, then nonsurgical options are favored. Do this, not that, for better health. For many women, all this information is a little confusing. When should you change your health habits, and when should you wait for more information? How can you tell the difference?

"It can be difficult for the consumer to know what research study is preliminary at best and in need of replication, versus a study that should cause you to change your life," says Dr. Andrew Budson, a lecturer in neurology at Harvard Medical School and chief of cognitive and behavioral neurology at the VA Boston Healthcare System.