A growth factor is a naturally occurring substance capable of stimulating cellular growth, proliferation, healing, and cellular differentiation. Usually it is a protein or a steroid hormone. Growth factors are important for regulating a variety of cellular processes.
The G-spot, also called the Gräfenberg spot, is characterized as an erogenous area of the vagina that, when stimulated, may lead to strong sexual arousal, powerful orgasms and potential female ejaculation. It is typically reported to be located 5–8 cm (2–3 in) up the front (anterior) vaginal wall between the vaginal opening and the urethra and is a sensitive area that may be part of the female prostate.
A sex toy is an object or device that is primarily used to facilitate human sexual pleasure, such as a dildo or vibrator. Many popular sex toys are designed to resemble human genitals and may be vibrating or non-vibrating. The term sex toy can also include BDSM apparatus and sex furniture such as slings; however, it is not applied to items such as birth control, pornography, or condoms. Alternative expressions include adult toy and the dated euphemism marital aid, although "marital aid" has a broader sense and is applied to drugs and herbs marketed to supposedly enhance or prolong sex. Sex toys are most commonly sold at a sex shop, but they may also be sold in a pharmacy/chemist store, a pornographic DVD store, or head shop. Today's sex toys are available in almost all countries for male and females.
Prostate massage is the massage or stimulation of the male prostate gland for medical purposes or sexual stimulation.
Deep brain stimulation (DBS) is a neurosurgical procedure involving the placement of a medical device called a neurostimulator, which sends electrical impulses, through implanted electrodes, to specific targets in the brain for the treatment of movement disorders, including Parkinson's disease, essential tremor, and dystonia. While its underlying principles and mechanisms are not fully understood, DBS directly changes brain activity in a controlled manner.
Sexual stimulation is any stimulus that leads to, enhances and maintains sexual arousal, and may lead to orgasm. Although sexual arousal may arise without physical stimulation, achieving orgasm usually requires physical sexual stimulation.
Stimulation is the encouragement of development or the cause of activity generally. For example, "The press provides stimulation of political discourse." An interesting or fun activity can be described as "stimulating", regardless of its physical effects on senses. Stimulate means to act as a stimulus to; stimulus means something that rouses the recipient to activity; stimuli is the plural of stimulus.
Transcutaneous electrical nerve stimulation is the use of electric current produced by a device to stimulate the nerves for therapeutic purposes. TENS, by definition, covers the complete range of transcutaneously applied currents used for nerve excitation although the term is often used with a more restrictive intent, namely to describe the kind of pulses produced by portable stimulators used to treat pain. The unit is usually connected to the skin using two or more electrodes. A typical battery-operated TENS unit is able to modulate pulse width, frequency and intensity. Generally TENS is applied at high frequency (>50 Hz) with an intensity below motor contraction or low frequency (<10 Hz) with an intensity that produces motor contraction. While the use of TENS has proved effective in clinical studies, there is controversy over which conditions the device should be used to treat.
Erotic sexual denial, also known as orgasm denial, is a sexual practice or sex play in which a person is kept in a heightened state of sexual arousal for an extended length of time without orgasm, and is commonly practiced in association with BDSM and sexual bondage. Erotic sexual denial can be another name for or variant of orgasm control.
Erotic electrostimulation is a sexual practice involving the application of electrical stimulation to the nerves of the body, with particular emphasis on the genitals, using a power source for purposes of sexual stimulation. Electrostimulation has been associated with BDSM activities, and erotic electrostimulation is an evolution of that practice.
Edging, peaking, or surfing, is an orgasm control sexual technique which may be practiced either alone or with a partner and involves the maintenance of a high level of sexual arousal for an extended period of time without reaching climax.
Pentagastrin is a synthetic polypeptide that has effects like gastrin when given parenterally. It stimulates the secretion of gastric acid, pepsin, and intrinsic factor, and has been used as a diagnostic aid as the pentagastrin-stimulated calcitonin test.
Fingering is the use of fingers or hands to sexually stimulate the vulva, vagina, or the anus. It may be done for sexual arousal or foreplay, mutual masturbation, or constitute the entire sexual encounter. To "finger oneself" is to masturbate in this manner. It is analogous to a handjob, and may be used as penetrative or non-penetrative sexual activity.
A strap-on dildo is a dildo designed to be worn, usually with a harness, during sexual activity. Harnesses and dildos are made in a wide variety of styles, with variations in how the harness fits the wearer, how the dildo attaches to the harness, as well as various features intended to facilitate stimulation of the wearer or a sexual partner.
Colony-stimulating factors (CSFs) are secreted glycoproteins that bind to receptor proteins on the surfaces of hemopoietic stem cells, thereby activating intracellular signaling pathways that can cause the cells to proliferate and differentiate into a specific kind of blood cell.
A vibrator is a sex toy that is used on the body to produce pleasurable erotic stimulation. Most 2010-era vibrators contain an electric-powered device which pulsates or throbs, which is used to stimulate erogenous zones such as the clitoris, the vulva or vagina, penis, scrotum or anus. There are many different shapes and models of vibrators. Some vibrators designed for women stimulate both the clitoris and the vagina. Some vibrators designed for couples stimulate the genitals of both partners.
Non-penetrative sex or outercourse is sexual activity that usually does not include sexual penetration. It generally excludes the penetrative aspects of vaginal, anal, or oral sexual activity, but includes various forms of sexual and non-sexual activity, such as frottage, mutual masturbation, kissing, or cuddling. Some forms of non-penetrative sex, particularly when termed outercourse, include penetrative aspects, such as penetration that may result from forms of fingering or oral sex.
A handjob is the manual stimulation of the penis or scrotum by another person to induce sexual pleasure, sometimes resulting in orgasm. Manual stimulation of the vagina, clitoris or rest of the vulva is fingering, while the manual stimulation of the genitals performed between two people is mutual masturbation. For circumcised people, lubrication is commonly used, while in uncircumcised people, a handjob is performed by moving the foreskin back and forth.
Nipple stimulation or breast stimulation is a common human sexual practice, either by itself or as part of other sexual activities. The practice may be performed upon, or by, people of any gender or sexual orientation. Adult women and men report that breast stimulation may be used to both initiate and enhance sexual arousal.
