Muscular endurance is your answer hope this helps!
Yes it can our mood tries to recall events at a later date can affect our ability to access those memories
If you mean humans have 5 senses (taste touch hear smell see) YES
A 'Trend' is a large social influence if this is what you are talking about. Trends are something where one person does/wears it (usually a popular person everyone likes) and then everyone else starts doing it.
Healthy activities with partner, doing more things actively, more or less spending more time together, financial aid is also important.