Testosterone therapy

Suicidal Behavior

Diet and behavior

REM sleep behavior disorder

Hormones

Hormones are secreted by the endocrine system into the body and adjust the functioning of all organ systems in the body. Testosterone and Estrogen are male/female specific, while others such as adre...

Testosterone increases honesty

(University of Bonn) Testosterone is considered THE male hormone, standing for aggression and posturing. Researchers around Prof. Dr. Armin Falk, an economist from the University of Bonn, have now bee...

VitalMax Vitamins Announces their New Product Estro-X Safeguards Male Hormones

Vitalmax Vitamins, a worldwide vitamin and supplement company relates that their new product, Estro-X, can help balance a man’s hormones naturally. They explain that as a man gets older, the male h...

Prenatal testosterone levels influence later response to reward

Testosterone levels early in fetal development influence later sensitivity of brain regions related to reward processing and affect an individual's susceptibility to engage in behavior, that in extrem...

Testosterone fosters social behavior in men

The hormone testosterone stands for typically male attributes - it fosters the forming of the sexual characteristics, increases libido and muscle building. Women also have this sex hormone, but to a m...

Study Finds Declining Testosterone Levels In Men Not Part Of Normal Aging

A new study finds that a drop in testosterone levels over time is more likely to result from a man's behavioral and health changes than by aging. The study results will be presented Monday at The Endo...

Testosterone Does Not Necessarily Wane With Age

For many men, testosterone levels drop as they get older, but new research presented at a conference this week suggests this is not necessarily a consequence of age itself, but more to do with behavi...

Fathers who sleep closer to children have lower testosterone levels

Closer sleeping proximity between fathers and children is associated with a greater decrease in the father's testosterone level, with possible implications for parenting behavior. The full report is p...

Prenatal exposure to testosterone leads to verbal aggressive behavior

(International Communication Association) A new study in the Journal of Communication links verbal aggression to prenatal testosterone exposure. The lead researcher, at University at Buffalo -- The St...

Testosterone and cortisol jointly regulate dominance: Evidence for a dual-hormone hypothesis.

Traditional theories propose that testosterone should increase dominance and other status-seeking behaviors, but empirical support has been inconsistent. The present research tested the hypothesis tha...

Stress, social behaviour, and secondary sexual traits in a male primate.

We examined variation in glucocorticoid levels in the mandrill, a brightly coloured primate species, to identify major social influences on stress hormones, and investigate relationships among glucoco...

The others: Universals and cultural specificities in the perception of status and dominance from nonverbal behavior.

The current study analyzes trans-cultural universalities and specificities in the recognition of status roles, dominance perception and social evaluation based on nonverbal cues. Using a novel methodo...

Understanding testosterone variation in a tropical lek-breeding bird.

Male reproductive coalitions, in which males cooperate to attract females, are a rare strategy among vertebrates. While some studies have investigated ultimate aspects of these relationships, little i...

Endocrine relationships between rank - related behavior and antler growth in deer.

In this review, we analyze endocrine aspects of the relationships between antlerogenesis and rank-related behavior. The explanation of these relationships has been based on the presumption that the an...