The Swiss developmental psychologist Jean Piaget used the term assimilation to explain the process in which people understand an experience in terms of their current stage of cognitive development and way of thinking. Assimilation is included in the adaptation process and includes the learning of new information and incorporation of that new information into our existing knowledge.
The safest and most effective way to get a deeper stretch is lean into it and excel
If
we force our body to stretch without letting our body get used to it,
we will most likely pulled our muscle or even tear our joints.
We need to gradually increase the flexibility in our joints by increasing the stretching intensity little by little
Strep throat is and example of an acute illness which can be treated with antibiotics
You should comfort him, and ask him what's wrong. Treat him like any other person and try to find a solution to his problem. Be there for him so it makes him happy again :)