Yes, it could, if you only have sex. Sexual activity like masterbations and oral sex, however, won't delay your menstrual cycle.
No, it increases your lust for sexual activity while at the same time causing a gratuitous amount of testosterone buildup in one's kidneys.
Gay sexual activity does not cause hemorrhoids.
i don't think so, but they can cause herpies.
first, if you have had sexual intercourse, you very well could be pregnant. if you are very athletic, that could cause missed period. And last, the most common thing is stress. good luck!
Not necessarily, especially if you are still going through puberty. It takes a while for a woman's period to regulate. High stress levels and changes in diet can be a cause of missed period as well as starting birth control pills. I wouldn't worry about it.
sexual activity and blood contact w/ someone that has it may cause it
Well it would depend on the frequency that he has sexual intercourse. It is after all, physical activity and if done regularly enough could potentialy cause weight loss.
The magnetic energy seems to be specifically associated with or could even be the cause of sunspots activity.
Alcohol, drug, and tobacco use. And/or sexual activity and behaviors that cause injuries
Too much sexual activity, I believe
Too much sexual activity, I believe
No. While global warming might affect tornado activity, tornadoes themselves are an end product of weather and climatic activity, not a cause.