The first stage (dialation)
Yes, to answer your question, this is health. Do something you love. Do something your passionate about. Sadness comes from a lot of things including; hormones, depression, anxiety. Hope this helps you out!
Answer:
Wont they still have the same genes, so they wouldnt be immune to anything? Like if you breed grey with blue they have different genes and can have different immunities to different things
Clique i think.. hope this helps. pls let me know if it's incorrect