Objective Subfertility is a common problem for couples in modern society. Many studies
have confirmed that lifestyle factors can affect fertility although there are conflicting …

Over the past decades there has been a significant decline in the birth rate in many
countries raising the question of the role and degree of involvement of biological factors in …

The term 'obesity'refers to an excessive amount of fat accumulating within the body and a
high BMI 30 and has been linked to a range of chronic diseases, including cardiovascular …

Background The desire for fertility is the manifestation of yearning for immortality. Infertility
and assisted reproductive technology (ART) expose couples to great affective, anxiety …

Prolonged or severe stress has been found to inhibit the hypothalamic-pituitary-gonadal axis
(HPG) and its testosterone release. In contrast, acute stress, including competition, social …

Male factor infertility is widely considered a harbinger for a man's general health. Failure of
reproduction often accompanies other underlying processes, with growing evidence …

Infertility represents a significant global health challenge, affecting more than 12% of
couples worldwide, and most cases of infertility are caused by male factors. Several …

Male infertility is a physiological phenomenon in which a man is unable to impregnate a
fertile woman during a 12-month period of continuous, unprotected sexual intercourse. A …

The mammalian circadian clock is an endogenously regulated oscillator that is synchronized
with solar time and cycle within a 24-h period. The circadian clock exists not only in the …

Lifestyle factors play a crucial role in the influence of semen quality, and they are especially
significant in the context of traditional Chinese medicine (TCM) clinical treatment for poor …