What are the advantages and disadvantages of cycling?

Riding a bicycle is a green and pollution-free means of travel that is highly advocated by people today. In ancient times, most people had to walk. Later, horse-drawn carriages were invented. During the Industrial Revolution, cars using steam engines were invented, and now cars are being improved. People's travel has become more and more convenient. Now, we are going to discuss the pros and cons of cycling.

The benefits are many, such as:

1. Bicycle is one of the best tools to overcome heart problems. More than half of the world's population dies from heart disease. Cycling not only compresses blood flow through leg movements and draws energy from the blood vessel ends back to the heart, but it actually strengthens the microvascular tissue at the same time. This is called "collateral circulation." Strengthening your blood vessels can protect you from the threats of aging and keep you forever young.

2. Habitual cycling exercise can expand your heart. Otherwise, your blood vessels will become thinner and your heart will degenerate. In your later years, you will experience the troubles it brings. Then you will find how perfect cycling is.

Cycling is a sport that requires a lot of oxygen. Once an elderly man completed a 460-kilometer bicycle trip in 6 days. He said: "Old people should exercise at least three times a week to strengthen their heart and restore its normal function. You need to make the heart beat vigorously, but not for too long. In this way it will be able to adapt to emergency situations, such as catching a car or resisting difficulties." Men who ride bicycles for a long time are prone to impotence.

Today's bicycle seats are usually narrow and hard, and riding on them will put a lot of pressure on the genitals. The force point of the bicycle seat is right between the anus and the scrotum, where there is an artery that controls the penis's ability to engorgement. If it is squeezed for a long time, it is easy to suffer from impotence.

The above is a detailed introduction about what are the benefits of riding bicycles that people advocate, and what kind of disadvantages it will bring to people. Riding a bicycle can reduce pollution, keep the air fresh, and avoid traffic jams, but the speed is obviously reduced, and urgent matters cannot be dealt with quickly.