Thanks to @stemng for the mention in its STEMng Digest, I am really happy and I am grateful for the mention. That said, let's begin with today's business. I was checking out a Whatsapp group yesterday,

在中国大概小孩子是从小打水痘疫苗的，所以不能体会在英国的幼儿园内2-3岁水痘高发期时一下子一个班一个班的互相转染，或者一家两三个小孩纷纷出痘，有的家长还在家痘B的开水痘party。。我只能说好吧。。3岁的Olivia肯定是被传染的，不过她真的乖的叫人心疼，说不要抓就拼命忍着，忍不住就哭倒在妈妈怀里: I don’t like chicken pox! 我真的不喜欢水痘!

Chicken pox is a type of disease that does not harm the body only. Thereby, the skin also has severe damage. So, if this disease gets affected, then beauty will be less visible. And the most worrying thing