In recent years, the incidence of infertility has been increasing gradually, while the natural
rate of population growth is declining or even at zero growth. China is observed to enter a …

Objective To investigate the contribution of ambient air pollutants-induced semen damage to
infertility risk, after identifying dose-response relationship between pollutants and semen …

Age alone should not be an absolute contraindication for any contraceptive methods.
However, medical eligibility criteria for combined hormonal contraception (CHC) use must …

Objective Patients with infertility are a high risk group in depression and anxiety. However,
an existing theoretically and empirically validated model of stressors, stress, and mental …

Objective Sleep duration has been found to affect some reproductive phenotypes but
fecundability has been rarely researched. We aim to evaluate the association between …

Purpose To examine the association between the mother's age at last birth and maternal
long-term survival. Methods Data from three national censuses (1972, 1983, and 1995) and …

Gametes are electrogenic cells that modify their electrical properties in response to different
stimuli. This behavior is due to the occurrence of ion currents flowing through ion channels …

Infertility affects about 9% of reproductive-age couples or more than 186 million people
worldwide and up to 15% of couples in the USA. Infertility is a life event that results in …

Infertility is a global phenomenon affecting more than 15% of people of childbearing age
throughout the world (WHO, 2010a), and it represents an important crisis in the life of many …

Physical activity has become a widespread lifestyle among the most developed societies
because of the many benefits it provides. Its practice is considered as a symbol of health and …