As people age and their bodies change, sexual response can change too. It is a good idea to research these changes so that they do not come as a surprise, and so that it is utterly clear that these changes are simply a natural part of the aging process. One of the most important things to recognize is that, although people of both sexes undergo definite changes in their sexual responses as they age, the majority continue to desire sexual activity and to find it very fulfilling.

	The vagina lubricates more slowly [1].
	The amount of lubrication in the vagina is decreased relative to the amount in younger years [1].
	The labia and clitoris are less engorged with blood during sexual arousal [3].
	Perceived orgasmic intensity may be lower because of fewer uterine and vaginal contractions during orgasm [1].
	A gradual thinning of vaginal tissue and shortening of the vaginal canal following menopause [2].
	The uterus and the cervix become smaller, and, in a small number of women, this may lead to painful uterine contractions with orgasm [5].
	Sex drive may increase as estrogen levels decrease and androgens begin to play a larger role in sexual response [4].

	Orgasm does not necessarily involve ejaculation as much as it may have in the past because the prostate has lost elasticity and does not produce as much semen [4].
	More frequently, erections may be "lost" before having an orgasm [1].
	In terms of urgency, sex drive decreases somewhat [1].
	It is more difficult or it takes a longer time or more stimulation to obtain an erection [1].
	The time it takes to have another erection after orgasm (the refractory period) increases, and may take up to 24 or 48 hours [1].
	It may take more stimulation than it used to for ejaculation to occur, and intercourse may be more prolonged [1].
	While erect, the penis is not as hard as it was in youth [1].
	Ejaculation is not as forceful as it was before, and the volume of ejaculate is reduced because of prostate changes [4].

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