1 . Scientists are now digging into precisely why exercise holds so many benefits for our mental health and memory. The answer, studies say, lies in our brain chemistry.

Each time you work up a sweat, your body releases feel-good happy hormones (荷尔蒙), including endorphins, dopamine and endocannabinoids, the latter being responsible for the so-called runner’s high. Now researchers are also pointing to myokines (肌肉因子) as an important contributor to the mental health benefits of exercise. When our muscles contract, myokines are released into the bloodstream, helping your muscles and organs communicate. They think this communication increases resilience to stress, reduces symptoms of mental suffering and anxiety and has a direct effect on depression.

A 2021 scientific report published in Neuropharmacology showed evidence that myokines boost brain function, like improving memory and mood. “Myokines reduce systemic inflammation (炎症), which is especially beneficial for people with drug-resistant depression whose low mood is linked to high inflammation,” explains Dr Jennifer Heisz, an expert in brain health and associate professor in the department of kinesiology at McMaster University in Canada.

A recent study published in the British Journal of Sports Medicine showed that treatment for depression can be much more effective when physical activity is added to the usual care. Participants found benefits after 12 weeks of exercising for 30 to 60 minutes a day. “While exercise is not a replacement for professional mental health treatment, physical activity can complement and enhance the effects of the treatment,” says lead researcher Ben Singh, a research fellow at the University of South Australia.

“It is amazing to consider how moving our bodies can heal our minds,” says Heisz. Whether you’re cycling, walking around your neighbourhood or doing yoga, getting sweaty is good for your body and mind. To get the biggest overall health boost, the key is to zero in on sports and activities you enjoy, so you’ll keep going back to them.

2 . Tai chi, a traditional, slow-moving form of Chinese physical exercise, is known to increase flexibility and improve balance. New research has been conducted to determine whether tai chi has an influence on lowering blood pressure in people with prehypertension (高血压前期).

In the study, Chinese scientists put 342 adults with prehypertension into two groups. The average age of people taking part in the study was 49. About half the participants (参与者) took part in aerobic exercise, including jogging, climbing stairs and cycling. The other half was trained to practice tai chi. Both groups got hour-long exercises four times a week.

Nearly 22% of the people who practiced tai chi saw their blood pressure fall to be normal, compared with nearly 16% of people in the aerobic exercise group. And fewer patients in the tai chi group went on to develop high blood pressure than patients in the aerobic exercise group.

So what is it about tai chi that helps lower blood pressure? “The practice tends to get more of a response from the parasympathetic (副交感的) nervous system, which is the network of nerves that relaxes your body after periods of stress or danger,” says Ruth Taylor-Piliae, a professor at the University of Arizona’s College of Nursing.

“I think the beauty of tai chi is that you don’t have to have a special gym membership, you don’t have to have special clothing,” Taylor-Piliae says. “Once you learn tai chi, you can do it anytime and anyplace. And it does provide a calming and relaxing effect.”

Evidence suggests it can also help protect against cognitive fall and even improve memory. But you have to practice it continually to get the most benefit.

3 . The holidays can be a difficult time to stay on track with your fitness goals.     1    . Even the most disciplined people can find it difficult to stick to their fitness routines during the holiday season. Here are some expert-recommended tips that can help you stay on track.

    2    .

Planning is the best way to make sure you don’t lose track of your goals. Plan your workouts for the week and mark them in your schedule to assure they are a part of your day.

Exercise early.

    3    . Make sure workouts are in the morning and you’ll set yourself up for a productive day. Then you can enjoy holiday activities and time with family without worrying about when you’ll have time to exercise.

Keep moving.

Research shows that getting up for just five minutes every 30 to 60 minutes and performing light activities reduces the risk of heart disease risk factors. Small efforts to get moving can help your overall health during the holidays. In addition to staying active, try to avoid sitting for long periods of time, such as when watching football games or eating.     4    .

Think out of the box.

The holidays are busy, but do your best to avoid the “all or nothing” mentality when it comes to physical activity.     5     — like taking a family walk around the neighborhood before opening Christmas presents.

4 . Knowing how many kilometers or miles per hour you’ll likely cover while hiking is of great importance.     1     It’s also important to build in time for breaks and extra time in case of bad weather or harder situations than expected.

If you’re not sure what your average hiking speed is, don’t worry.     2     Naismith’s rule is considered useful and was invented by the Scottish mountaineer William W. Naismith. It’s a great way to work out how long it will take you to complete your chosen path and it takes into consideration both distance and elevation (海拔高度).

It can be worked out as follows. One hour for every 3 miles plus an additional hour for every 600m of ascent (升高). So let’s say you wanted to know how long it would take to hike 6 miles with an elevation gain of 1,200m. That’s 2 hours for the distance and another 2 hours for the ascent, for a total of 4 hours.     3     It doesn’t include breaks.

    4     You can choose exercises that you enjoy, whether that’s running, cycling, dance classes or something else. As long as it helps you build muscle (肌肉) strength, it will help you get your average hiking speed where you want it to be. Interestingly, specific weight training also helps increase your average walking speed on the path. It’s common knowledge that hikers should focus mainly on leg strength.     5    

5 . Sports offer so many great benefits not only to our physical health but to our mental health.     1    . So allow me to help you count the ways:

·Playing sports improves our mood.

Any form of physical activity excites the release of chemicals called endorphins (脑内啡), which make you feel happier and more relaxed as well. This explains why you feel so great after playing a pick-up game of basketball or throwing a football. It doesn’t have to be an intense session.     2    .

·Playing sports gives us a promotion of confidence.

    3    , which can be extremely rewarding. These goals might be to win the game, to score agoal, to perform your best, or to simply have fun. Whatever the case, setting these team or individual goals can provide heightened feelings of self-worth and confidence.

·    4    .

Exercising regularly can improve skills like critical thinking, learning, and concentration abilities. And on top of that, engaging in physical activity such as playing sports or cycling may help prevent development of certain cognitive disorders (认知障碍). So pick up a bat, a ball, or a glove and get out there!

·Playing sports provides means for socialization.

Playing team sports provides the perfect opportunity for social interaction. It allows you to spend time and bond with old friends, as well as meet new ones!     5    , whether that should be volleyball, football, hockey, gymnastics, or any others. You’ll harvest many health benefits and have fun doing it.