Associations of Age Measures With Serum Anti-Müllerian Hormone

Inclusion Criteria: * Informed consent as documented by signature * Female * Age between 35 and 45 years * German as native language * Regular menstrual cycle with a mean length of 21-35 days * Next menstrual period is predictable within a 7-day time frame * Willing to attend bio-functional status analysis and to give blood and saliva samples Exclusion Criteria: * Pregnancy or breastfeeding * Hormonal contraception * Chronic diseases * Mental illness * Smoking \>10 cigarettes per day or over 10 packyears * Consumption of \>30g alcohol per day (\>1 liter of beer or \>0.3 liter of wine) * Inability to give consent