It is unclear whether genetics play a role ; however, there are many neurochemical and hormonal changes in individuals suffering with depersonalization disorder.

Section Nine covers " The Real-life Experience ," during which individuals seeking hormonal and other treatments are expected to begin transitioning publicly to their preferred gender role.

Most likely, a role is played by biomechanical factors, as well as environmental, hormonal and genetical factors.

The association of LAM with women of childbearing age suggests that hormonal stimulation plays a role in the disease process, and several approaches to treatment involve diminishing the effect of estrogen.

The almost exclusive incidence of SCFE during the adolescent growth spurt indicates a hormonal role.

Various studies point to different, even conflicting positions, such as a combination of genetic, hormonal, and environmental influences, with biological factors involving a complex interplay of genetic factors and the early uterine environment, or no genetic influence.

These extend from the exclusively biological " genetic " and " prenatal hormonal " differences between men and women, to " postnatal " features, some of which are social, but others have been shown to result from " postpubertal hormonal " effects.

Specific genes induce gonadal differences, which produce hormonal differences, which cause anatomic differences, leading to psychological and behavioral differences, some of which are innate and some induced by the social environment.

Besides these, their communication also occurs with chemical and tactile cues, such as social grooming, hormonal changes and posturing.

Rock hyrax calls are referred to as “ songs .” Hyrax songs can provide important biological information such as size, age, social status, body weight, condition, and hormonal state of the singer, as determined by measuring their song length, patterns, complexity, and frequency.

According to Diamond's view, andropause is a change of life in middle-aged men, which has hormonal, physical, psychological, interpersonal, social, sexual, and spiritual aspects.

Alcohol, hormonal imbalance and change of life hormone levels ( puberty, adulthood, middle age, menopause, seniors ), behavior modification, operant conditioning and many drugs affect a person's social and sexual inhibitions, while reducing integral human bonding abilities for intimacy.

:" Human sexual behavior also varies with hormonal state, social context, and cultural conventions.

Each lobe is composed of many lobules, at the end of which are sacs where milk is produced in response to hormonal signals.

Reduced libido is also often iatrogenic and can be caused by many medications, such as hormonal contraception, SSRIs and other antidepressants, antipsychotics, opioids and beta blockers.

During the perimenopause years, many women undergo noticeable and clinically observable physical changes resulting from hormonal fluctuations.

Prepubescent girls ' hymenal openings come in many shapes, depending on hormonal and activity level, the most common being crescentic ( posterior rim ): no tissue at the 12 o ' clock position ; crescent-shaped band of tissue from 1 – 2 to 10 – 11 o ' clock, at its widest around 6 o ' clock.

Some examples of progestins that have been used in hormonal contraceptives are norethynodrel ( Enovid ), norethindrone ( many brand names, most notably Ortho-Novum and Ovcon ), norgestimate ( Ortho Tricyclen, Ortho-Cyclen ), norgestrel, levonorgestrel ( Alesse, Trivora-28, Plan B, Mirena ), medroxyprogesterone ( Provera, Depo-Provera ), desogestrel, etonogestrel ( Nexplanon ), and drospirenone ( Yasmin, Yasminelle, YAZ ).

Although most plants normally reproduce sexually, many have the ability for vegetative propagation, or can be vegetatively propagated if small pieces are subjected to chemical ( hormonal ) treatments.

Nevertheless, despite the potential advantages of a trial of hormonal therapy, many surgeons do not consider the success rates high enough to be worth the trouble since the surgery itself is usually simple and uncomplicated.

Hair loss can result from many factors individually and combined, including excess oil production from hormonal imbalance, stress, extreme hot or cold weather, weakened immune system, Parkinson's disease, certain neurological conditions and poor scalp hygiene.

Generally, those traits that are easily reversible will revert upon cessation of hormonal treatment, unless chemical or surgical castration has occurred, though for many transsexual people, surgery is required to obtain satisfactory physical characteristics.

The neuronal and hormonal activities it generates regulate many different body functions in a 24-hour cycle, using around 20, 000 neurons.

Like many hormonal therapies, changes take place over time.

This was based on the observation that many people with apparently comparable intersex conditions raised either male or female developed a gender identity consistent with their sex of rearing regardless of genetic, hormonal, and anatomic characteristics.

In many species of fish, amphibians, crustaceans, and reptiles, melanosomes can be highly mobile within the cell in response to hormonal ( or sometimes neural ) control, and this leads to visible changes in colour that are used for behavioural signaling.

These muscle cramps can have many possible causes directly resulting from high or low pH or substrate concentrations in the blood, including hormonal imbalances, low levels of potassium or calcium, side effects of medication, or, more seriously, diseases such as amyotrophic lateral sclerosis and neuropathy.

Adrenocortical carcinoma is remarkable for the many hormonal syndromes which can occur in patients with steroid hormone-producing (" functional ") tumors, including Cushing's syndrome, Conn syndrome, virilization, and feminization.

For example, extracts of St John's wort ( Hypericum perforatum ), a phytotherapic used for treating mild depression are known to cause an increase in the cytochrome P450 enzymes responsible for the metabolism and elimination of many drugs, so patients taking it are likely to experience a reduction in blood levels of drugs they are taking for other purposes, such as cancer chemotherapeutic drugs, protease inhibitors for HIV and hormonal contraceptives.

These include many endocrine ( hormonal ) abnormalities, such as hypothyroidism, Cushing's Syndrome ( hyperadrenalcorticism ), and tumors of the ovaries or testicles.

This odor varies depending on many known factors, including diet, hormonal changes, stress level, amount of sweat, other odors in the space, and individual sense of smell.

Researchers believe that there may also be a hormonal component as many of the autoimmune conditions are much more prevalent in women of childbearing age.

External use of detergents or douches or internal disturbances ( hormonal or physiological ) can perturb the normal vaginal flora, consisting of lactic acid bacteria, such as lactobacilli, and result in an overgrowth of Candida cells, causing symptoms of infection, such as local inflammation.

People who want to engage in such behaviors with a reduced chance of pregnancy employ any of a variety of available contraception methods, such as birth control pills, the use of a condom, diaphragms, spermicides, hormonal contraception, and sterilization.

Some specialists claim that women may experience low libido due to some hormonal abnormalities such as lack of luteinising hormone or androgenic hormones, although these theories are still controversial.

The rate of proteolysis may also depend on the physiological state of the cell, such as its hormonal state as well as nutritional status.

Intracranial pressure may be increased due to medications such as high-dose vitamin A derivatives ( e. g. isotretinoin for acne ), long-term tetracycline antibiotics ( for a variety of skin conditions ) and hormonal contraceptives.

Both mastectomy and lumpectomy are what are referred to as " local therapies " for breast cancer, targeting the area of the tumor, as opposed to systemic therapies such as chemotherapy, hormonal therapy, or immunotherapy.

When sex education is contentiously debated, the chief controversial points are whether covering child sexuality is valuable or detrimental ; the use of birth control such as condoms and hormonal contraception ; and the impact of such use on pregnancy outside marriage, teenage pregnancy, and the transmission of STIs.

However, formication may also be the result of normal hormonal changes such as menopause, or disorders such as peripheral neuropathy, high fevers, Lyme disease, skin cancer, and more.

Additionally, gynaecologists make frequent use of specialized hormone-modulating therapies ( such as Clomifene citrate and hormonal contraception ) to treat disorders of the female genital tract that are responsive to pituitary and / or gonadal signals.

The sleep – wake rhythm may, in these circumstances, become out of phase with other circadian or ultradian rhythms such as metabolic, hormonal, CNS electrical, or neurotransmitter rhythms.

Part B coverage includes physician and nursing services, x-rays, laboratory and diagnostic tests, influenza and pneumonia vaccinations, blood transfusions, renal dialysis, outpatient hospital procedures, limited ambulance transportation, immunosuppressive drugs for organ transplant recipients, chemotherapy, hormonal treatments such as Lupron, and other outpatient medical treatments administered in a doctor's office.

Other causes of hair loss can be due to hormonal upsets caused by underlying medical conditions such as ovarian cysts.

Extreme shortness in humans with proportional body parts usually has a hormonal cause, such as growth-hormone deficiency, once called pituitary dwarfism.

For examples, soaps and ointments can deplete the skin of natural protective oils and fat-soluble content such as cholecalciferol ( vitamin D3 ), and external substances can be absorbed, to disturb natural hormonal balances.

One issue that can be considered an advantage or a disadvantage depending upon an individual's viewpoint, is that removing hair has the effect of removing information about the individual's hair growth patterns due to genetic predisposition, illness, androgen levels ( such as from pubertal hormonal imbalances or drug side effects ), and / or gender status.

Common causes of Reinke's edema include smoking, gastroesophageal reflux, hormonal changes such as hypothyroidism and chronic voice abuse.

Sex drive is strongly tied to biological factors such as “ chromosomal and hormonal status, nutritional status, age, and general health ”.

However, it can also be caused by medical problems such as diabetic neuropathy, multiple sclerosis, genital mutilation, complications from genital surgery, pelvic trauma ( such as from a straddle injury caused by falling on the bars of a climbing frame, bicycle or gymnastics beam ), hormonal imbalances, total hysterectomy, spinal cord injury, cauda equina syndrome, uterine embolisation, childbirth trauma ( vaginal tearing through the use of forceps or suction or a large or unclosed episiotomy ), vulvodynia and cardiovascular disease.