Cold air. Effective trick and its solution

EFFECTIVE FOCUSES AND THEIR CLUES
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Cold air. Focus Secret

Spectacular tricks and their clues

Directory / Spectacular tricks and their clues

Focus Description:

The magician asks the subject to extend their hand forward with the thumb pointing up. The magician rubs his hand and extends his hand so that the fingertips of his hand almost touch the palm of the focus participant.

The magician says that coldness will emanate from his fingers and the participant will feel his palm getting colder. This will not happen instantly, so the magician raises his hand up for a second and again brings his fingers to the subject's palm.

He repeats the action, and this time the subject feels cold seep into his palm. This is an amazing sensation, and the subject wonders if he has become a victim of imagination.

Focus secret:

In fact, the magician does not make the subject believe that his hand feels cold; it actually causes a puff of cold air, which the subject is unaware of. When he raises his hand, the magician also brings his fingers to the subject's palm with a wave of his hand. The fingers stop at the palm and remain in that position; the movement of the hand causes air to move around the fingers and makes the palm feel cold.

The purpose of rubbing the subject's hand before focus is to warm it and thereby make it more sensitive to cold. It is not necessary to cause air movement with a sharp movement of the hand; quite a light movement. You can try this trick on your hands.

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Sleep protects against colds 11.09.2015

Sleep is sometimes called the cure for all diseases, and there is a truth to this - lack of sleep weakens our defense systems, so that viruses and bacteria have a good chance to enter the body and gain a foothold in it. However, until now, the beneficial, "health" properties of sleep were based on subjective evidence, when a person himself assessed his condition depending on the "dose of sleep" and reported this to physicians. Such surveys are certainly important, but they are definitely not sufficient for rigorous scientific conclusions.

Aric Prather of the University of California at San Francisco, along with colleagues from Carnegie Mellon University and the University of Pittsburgh, managed to obtain more objective evidence that sleep helps to resist, if not all diseases, then at least the common cold. Over the course of a week, researchers collected sleep data from more than XNUMX people who were given a special wrist device that recorded body movements during sleep; in addition, the participants in the experiment also recorded the time when they went to bed and when they woke up.

Participants were then given a nasal spray containing the rhinovirus that causes colds and put into a hotel where they stayed for five days. Before a person injected a solution of the virus into his nose, a blood test was taken from him to determine the level of already existing antibodies to the infection - it is obvious that if their level was initially high enough (that is, the immune system remembered what to do with a cold), then the disease receded quickly. Those with immune systems already ready to face a cold had to be withdrawn from the study: even if they got sick, they would recover too quickly, and sleep here would hardly have played any significant role in resisting the virus.

Whether infection occurred or not was monitored by external symptoms (runny nose, etc.) and with the help of special tests. For example, a special dye was instilled into the patient's nose and the time it took for it to reach the throat was measured; if it took about 35 minutes, then the airways were noticeably inflamed and swollen, and the disease was therefore on the rise. Along the way, samples of the nasal mucosa were taken, in which the concentration of the virus and antibodies against it were measured.

The likelihood of catching a cold was compared to how long a person sleeps. The quality of sleep was also taken into account here: if the sleep was restless, then in total the sleep time turned out to be less than during a quiet sleep, even if both subjects went to bed and got up at the same time. It turned out that if you sleep less than 5 hours or 5-6 hours at night, then the probability of getting seriously ill with a cold will be 4,5 and 4,2 times higher, respectively, than if you sleep 6-7 hours or more.

Sleep obviously helps the immune system in some way. It can be assumed that sleep helps fight other infections, not just the cold virus, however, more research will be needed to confirm this.

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