Science in the Weekly Hot Topics | Two people who like each other on a blind date have the same heartbeat frequency

2021 Week 49 Issue 14 Total Issue 360

Hello everyone, the weather has been getting colder recently, so please keep warm. Here are the most popular scientific topics that we selected from Weibo, WeChat, Zhihu, Baidu, Toutiao and other information websites this week:

#There will be a vaccine for acne#

#Webb Space Telescope is about to launch#

#The first lesson of Tiangong Classroom#

#The heartbeats of two people who like each other on a blind date are in sync#

#Forty Camels kicked out of beauty pageant due to plastic surgery#

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1. There will be a vaccine for acne

According to Health Times, French pharmaceutical company Sanofi-Pasteur is developing a vaccine for acne, which is expected to enter clinical application in 2023. Acne is actually a type of acne, and its severity is directly related to Propionibacterium acnes in human skin microorganisms. The vaccine can be injected locally on the skin of acne patients through a micro-syringe. CAMP protein monoclonal antibody (Propionibacterium acnes can secrete a virulence factor called Christie-Atkins-Munch-Peterson (CAMP)) can prevent Propionibacterium acnes from causing inflammation, thereby achieving the effect of prevention and treatment. However, this vaccine only targets Propionibacterium acnes. Will it cause local skin flora imbalance and lead to other skin problems? It is still unknown.

Hotspot sources:

https://s.weibo.com/weibo

The editor has something to say: There will be a vaccine for acne, but my youth is over.

2. The Webb Space Telescope is about to be launched

Recently, NASA announced that the Webb telescope has completed the final ground test and is expected to be launched around December 22 (the Webb telescope was established in 1996, with an original plan to invest $1 billion and launch in 2007, but due to the high level of sophistication of the equipment, constant modifications during manufacturing, and increasing costs, the launch time has been postponed again and again). The Webb telescope is the telescope with the longest observation distance to date, and can almost trace back to the earliest galaxies formed at the origin of the universe. After the Big Bang, the starlight from ancient galaxies was stretched by the expanding cosmic structure for billions of years, and the original wavelength of light was transformed from visible light or ultraviolet light to infrared light. The main observation task of the Webb telescope is to investigate the residual infrared radiation after the Big Bang, that is, the initial state of the universe. In the future, perhaps through the Webb telescope we can hope to completely change our understanding of distant planets and deep time.

Hotspot sources:

https://finance.sina.com.cn/tech/2021-12-02/doc-ikyakumx1529598.shtml

The editor has something to say: I hope there won’t be any delays this time.

3. The first lesson in Tiangong Classroom

On the afternoon of December 9, 2021, the first lesson of the "Tiangong Classroom" arrived as scheduled. Astronauts Zhai Zhigang, Wang Yaping, and Ye Guangfu of the Shenzhou 13 crew gave space lectures on the Chinese space station. This space lecture was conducted in an interactive way between the earth and the sky. The three astronauts showed the students the working and living scenes of the Chinese space station, demonstrated cytological experiments, object movement, liquid surface tension and other phenomena in a microgravity environment, and explained the scientific principles behind the experiments. In order to communicate with the ground classroom in real time, this "lecture" was mainly applied to the Tianlian satellite (the current second-generation satellite has a higher transmission rate and other capabilities than the first-generation satellite) and the measurement and control resources of various ground measurement and control stations. At the same time, the ground staff ensured that the audio and video streaming signals were smooth and stable.

Hotspot sources:

https://news.ifeng.com/c/8BprsCZniF8

Image source:

Weibo - Xinhua News Agency

The editor has something to say: To be honest, this should be the most expensive "online course" at the moment!

4. Two people who like each other on a blind date have the same heartbeat frequency

During a blind date, both parties have learned a lot about each other, their online profiles are bright and beautiful, and they are also smiling and talking when they meet offline, as if the relationship is already going to work out. However, online information may be carefully arranged, and the smiles and eye contact during the meeting cannot represent the other party's true thoughts. So, how can we be sure that both parties really like each other? A paper published in Nature Human Behavior stated: The other party's heartbeat will not lie. If the other party is interested in you during the blind date, then his or her heartbeat frequency will be the same as yours. He or she may be excited (fast heartbeat), depressed (slow heartbeat), or his or her heartbeat may be fast or slow, but this rhythm will be the same as your heartbeat frequency. Because external behaviors such as smiling, nodding, and eye contact are easy to disguise (such as "Aquaman"), but it is difficult to get the heartbeat involved, so if the other party's heart is pounding like you, the author of the paper believes that it is likely that he or she is really in love.

Hotspot sources:

https://doi.org/10.1038/s41562-021-01197-3

The editor has something to say: But the problem is, I can't say to the other person when we meet for the first time: "Hello, you seem to be breathing rapidly, let me take your pulse", I guess the other person's heartbeat will indeed speed up, but it's just because he is scared.

5. Forty Camels Kicked Out of Beauty Pageant for Plastic Surgery

The annual King Abdulaziz Camel Festival (a cultural, economic, sports and entertainment festival sponsored by the Saudi Arabian royal family, aimed at strengthening and consolidating the camel cultural heritage in the Arab region) opened recently. Among them, the camel beauty contest is one of the highlights. The selection experts will carefully examine every part of the camel from the nose to the back to the tail. In order to win the huge prize money (about 420 million yuan (66 million US dollars)), some breeders inject botulinum toxin into the lips, nose, chin and head of the camel to make the lips and nose bigger, and give hormones to promote muscle growth to win the favor of the judges. The official of the event said that it will crack down on all cheating in the camel beauty pageant and punish the breeders involved.

Hotspot sources:

https://weibo.com/2258727970/L5iuQ7paw?from=page_1002062258727970_profile&wvr=6&mod=weibotime&type=comment

Image source:

https://www.bbc.com/news/world-middle-east-59593001

The editor has something to say: I really didn’t expect that the plastic surgery industry has now become involved in animal beauty pageants.

In conclusion:

① Acne is mostly caused by the vigorous secretion of sebaceous glands (not limited to adolescence), which can actually be avoided through good living habits, such as facial moisturizing and cleaning;

② Accidents are inevitable during project development, which will increase costs and time, and eventually delay completion. However, you can try to avoid them through early preparation;

③ Compared with the first space course eight years ago, my country's current relay satellite system has undergone great changes, space resources are more abundant, and satellite capabilities have also been greatly developed;

④ Maybe you can give your date a heart rate monitoring bracelet when you go on a blind date in the future;

⑤ Compared to human "plastic surgery", any cosmetic surgery on animals is extremely cruel. From ear cropping to claw removal, horn removal or filler injections, they have no choice.

Source: Interesting Science