The answer is the Lymphatic system
The lymphatic system plays an integral role in the immune functions of the body. It is the first line of defense against disease. The system itself is an extensive drainage network that helps keep bodily fluid levels in balance and defends the body against infections.
I do not think that testing should be done on animals. Why are you testing human products on animals in the first place? Test products that you want to use on the people that will it be given to.
wait are tou asking a question or are you telling us sum
Great question!
When you understand that the person you are talking with is unable to shift his/her opinion, and starts getting mad. That's the best time to compromise, since not doing so might bring stress and conflict as you mentioned.