The New England Journal of Medicine study also pointed out that climbing the stairs can prolong life, each step to live 4 seconds longer. However, we often see people struggling on the stairs, knee pain to go upstairs, or even the more you climb the more serious knee problems. Is climbing stairs or hiking a good exercise? Unrecoverable knee wear and tear! Stair climbing or mountain climbing is a weight-bearing exercise, the joints below the waist have to bear the weight of their own bodies, especially the knees are under the most stress. When the body climbs up the steps, the weight on the knees will instantly increase to about four times the usual weight, for example, a person weighing 60 kg, when walking on a flat road, each side of the knee weight 60 kg, but climbing stairs or mountain climbing knee weight has become as high as 240 kg, equivalent to the weight of a piano on each side of the knee. And if the speed is accelerated, the pressure on the knee will be greater. And weight is the biggest enemy of the knee joint. When climbing stairs or hills, the knee not only bears more weight, but also moves back and forth and twists sideways, especially in the front of the knee joint where the patella is under the most pressure, which also causes wear and tear on the meniscus and other joint soft tissues. Therefore, people with specific health conditions are advised not to climb stairs or hills as a sport, for example: 1, pregnant women or people who are overweight, because any excess weight on the knee is doubly burdensome. 2, people with degenerative arthritis, because the soft tissues of the knee have been excessively worn, continue to improper use will make the symptoms aggravated. 3, people with patellar ectropion, because the patella is inherently unstable, often climbing stairs or hills will make the problem of ectropion more serious. 4, O-legged people have more wear and tear on the medial knee, excessive stair climbing or mountain climbing will accelerate the wear and tear of the soft tissues on the inside of the knee and degeneration, making the symptoms of O-legged more obvious. 5, people with cardiovascular disease should also be careful when climbing stairs or climbing, because the heart’s demand for oxygen will increase, if not enough oxygen at once, may lead to myocardial infarction, if not timely medical treatment, and may even die suddenly. 6, people over 40 years old, due to the function of various parts of the body gradually poor, it is recommended that it is also best to climb the stairs or hills less, stepping in place are better than climbing stairs or hills, the degree of damage is also small. Easy exercises to take care of your knees ~ too easy, no one will care about you if you don’t do it again! Easy exercises to take care of your knees! Here is a very easy but very effective exercise, easy to learn, easy to do, any time you want to do it, you can use the work gap, watching TV can also be done while watching, the general normal pain-free feet to find a chair can be leaned back, hips sitting back against the back of the chair, hands on the back of the chair, back pad a breathable cushion or cushion, under the thigh pad a bath towel, you can use several bath towels, towels bundled together, thick enough Bundled solid can be, in order to be high knee pad. Sitting upright waist and back need to be straight, two feet hanging down a natural sway, not too large swing, easy to shake ah shake can be. This simple method is also known as exercise, to strengthen the knee is very helpful, 4000 per day than running powerful. Take time to do some help every day, in order to make the knee more healthy, lazy and do not want to go out to do this exercise is most suitable. If you have an old knee injury or foot pain, you can use your healthy foot to drive the foot that hurts, the healthy foot holding the foot that hurts while swaying back and forth naturally, assuming that the healthy left foot is holding the right foot that hurts, doing so is also considered rehabilitation, so that the knee gradually regains its health.