Silicon Investor (SI) -- The First Internet Community

STOCKTALK

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor. We ask that you disable ad blocking while on Silicon Investor in the best interests of our community. If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.

Pastimes : Let's Talk About Our Feelings!!! -- Ignore unavailable to you. Want to Upgrade?

To: epicure who wrote (27316)	12/28/1998 9:49:00 PM
From: Graystone	Respond to of 108807

Estrus, in Humans ? or Humans menstruate , estrus aside. The point I was making is one which can be made only for humans. The definition of estrus is not applicable, unless very broadly, to human behaviour. That is a distinct evolutionary advantage, if indeed it is evolutionary. A little background reading on the subject for those who may be unsure of what we are discussing. The term, menstrual cycle refers to the hormonal and reproductive tissue changes that occur in adult female mammals during their reproductive years. Depending upon the subject matter, the cycle is usually divided into three parts, the follicular phase (the time when the follicle(s) in the ovary are maturing and beginning to secrete estrogen)(hence the term, follicular phase), the midcycle phase (when estrogen levels are maximal and when ovulation occurs (the follicle ruptures and the ovum[egg] is released) and the luteal phase (when both progesterone and estrogen are secreted by the corpus luteum [which developed from the follicle], hence the term, luteal phase. Estrus is the condition of heightened female sexual motivation, it occurs during the midcycle phase (facilitated by estrogen, inhibited during the luteal phase as a result of rising progesterone concentrations) and is reflected by the female's sexual attraction and approach to the male (the female is also most attractive to the male at this time). Estrus is characteristic of most if not all mammals, depending on how estrus is defined. If estrus is defined broadly, it relates to all mammals, perhaps even humans (although this is not generally accepted). Some scientists limit the definition of estrus to only those mammals in which the female exhibits a reflexive response to the male, termed lordosis. If estrus is defined by behavioral evidence of heightened female sexual motivation, then all the great apes exhibit estrus.