In summer the extreme heat often makes people sweaty and restless. While people are annoyed by it, experts suggest summer is the best season to discharge(排放) your body’s toxins(毒素) and recover your energy.

One popular option is hot-stone massage(按摩). Therapists use smooth and heated stones, usually river rocks, to massage certain parts of the body, or place them on key points of the body. The warmth of the hot stones will improve blood circulation and also help relax muscles, while sweating is also believed to be good for discharging the body’s toxins.

Another popular option is hot-stone baths. The hot-stone bath will help the body discharge toxins and humidity(湿气) that accumulated during the last winter. Summer is the best season to build a good body. Rather than use water or steam to heat and wash the body, people simply wear a coat or something comfortable, and then lie on heated stone tablets made of hot stones, which are warmed to around 45^oC. The body will gradually warm up and blood circulation will also be improved. More sweat will come out quickly. The sweat is smooth and fresh, not smelly like that released after sports activities. Such baths bring a number of health benefits, such as anti-aging, improved blood circulation and stress relief. The slimming effect of dieting can even be promoted.

Using hot stones for healing dates back to ancient times, but the modern renewal of hot-stone massage is generally credited to Mary Nelson, a native of Tucson, Arizona, America, whose trademark is “LaStone Therapy”.

The therapy is gaining wide popularity with many people, especially those who have jobs in cool air-conditioned rooms. The hot-stone therapy can help cure many diseases, including back pain.

Your child comes home from school or daycare with a note alerting you to a case of hand, foot and mouth disease. 【小题1】 But you are immediately flooded by the sea of medical information on the Internet. The problem for most of us is distinguishing trusted sources of information from misleading or altogether "fake" health news. A few tips can help you simplify your search and find information that you can trust.

Consider the source. A website's domain name can tell you a lot about its believability. Nonprofit, nongovernmental research, education and health professional organizations are generally excellent resources that tend to have “.org” endings. 【小题2】 Colleges and universities also can be excellent sources and you can identify their websites by looking for “.edu” at the end.

Dig deep. A well-designed website can mask faulty information. Before you dive into the material, read the site's “About Us” tab or an equal to learn about the organization behind the digital door. Be careful. 【小题3】

Look for red flags. If you open a website and find it difficult to see anything except the explosion of advertisements, it's time to hit the "back" button. Lots of ads are a sure sign of the bad resource.

【小题4】 Comb articles that you can find online for easy-to-miss information that is important threads to reliability. Is the author a medical professional? When did he or she write the essay? Was the piece reviewed by such an individual, and how recently?

【小题5】 What would be more important for them is to have peace of mind in knowing the information they gather is trustworthy.

For decades, scientists thought of the brain as the most valuable and consequently most closely guarded part of the body. Locked safely behind the blood-brain barrier, it was broadly free of the harm of viruses and the battles started by the immune system (免疫系统). Then, about 20 years ago, some researchers began to wonder: is the brain really so separated from the body? The answer, according to a growing body of evidence, is no.

The list of brain conditions that have been associated with changes elsewhere in the body is long and growing. Changes in the makeup of the microorganisms in the digestive system have been linked to disorders such as Parkinson’s disease. There is also a theory that infection during pregnancy could lead to brain diseases in babies.

The effect is two-way. There is a lengthening list of symptoms not typically viewed as disorders of the nervous system, but the brain plays a large part in them. For example, the development of a fever is influenced by a population of nerve cells that control body temperature and appetite. Evidence is mounting that cancers use nerves to grow and spread.

The interconnection between the brain and body has promising implications for our ability to both understand and treat illnesses. If some brain disorders start outside the brain, then perhaps treatments for them could also reach in from outside. Treatments that take effect through the digestive system, the heart or other organs, would be much easier and less risky than those that must cross the blood-brain barrier.

It also works in the opposite direction. Study shows mice have healthier hearts after receiving stimulation to a brain area involved in positive emotion and motivation. Activation of the brain reward centre — called the ventral tegmental area (VTA) — seems to cause immune changes that contribute to it. Working out how this happens could help to destroy cancers, enhance responses to vaccines and even re-evaluate physical diseases that, for centuries, have not been considered as being psychologically driven.