Lifestyle Factors Key to Fertility – January 18, 2026 – Balance
Infertility affects about one in six peopel of reproductive age throughout their lives. The condition affects both men and women and is defined by the inability to achieve a pregnancy after 12 months of frequent and unprotected sexual intercourse. It is estimated to effect 15% of couples worldwide, a similar rate in Brazil.
dysfunctions in the male reproductive system account for between 20% and 30% of the causes. Those of the female reproductive system account for 30% to 35% of infertility cases. And in 20% to 35% of cases, both the man and the woman present alterations. “It is worth noting that in about 10% to 30% of cases, the reason for infertility is not found, falling into the category of infertility of unknown cause,” explains gynecologist José pedro Parise Filho, a specialist in assisted reproduction at the Einstein hospital Israelita.
In late November 2025,the WHO (World Health Organization) launched unprecedented guidelines for the prevention,diagnosis and treatment of infertility,with the aim of making care safer,fairer and more accessible worldwide. The document brings together 40 recommendations and draws attention to a public health problem. “A global guideline generates a huge impact because it provides technical and political support to expand access to infertility services and demand quality assistance,” says Parise Filho.
Access is one of the main challenges in infertility treatment. This is due, mainly, to the high costs, which in many countries
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Infertility: an Overview & Current Understanding (as of January 18, 2026)
Table of Contents
Infertility is generally defined as the inability to achieve pregnancy after 12 months or more of regular, unprotected sexual intercourse, or after six months for women aged 35 or older. The Centers for Disease Control and Prevention (CDC) estimates that approximately 1 in 6 couples experience infertility. The latest verified status is that infertility rates remain relatively stable, with ongoing research focused on improving diagnostic and treatment options. there have been no major breaking developments regarding infertility definitions or prevalence as of january 18, 2026.
causes of Infertility
Infertility can result from factors affecting either the male or female reproductive system, or a combination of both. Mayo Clinic details a wide range of potential causes. These include ovulatory disorders, tubal factors (blockages), endometriosis, uterine factors, and diminished ovarian reserve in women. In men, causes can include abnormal sperm production or function, and problems with sperm delivery. Approximately one-third of infertility cases are due to female factors, one-third to male factors, and the remaining cases are due to a combination of factors or unexplained infertility.
Risk factors for Infertility
Several modifiable and non-modifiable risk factors can contribute to infertility.
Modifiable Risk Factors
Lifestyle factors play a notable role. The World Health Organization (WHO) highlights that sexually transmitted infections (STIs), if left untreated, can lead to pelvic inflammatory disease and subsequent infertility in women. Smoking, excessive alcohol consumption, obesity, and exposure to environmental toxins are also linked to reduced fertility in both men and women. The use of anabolic steroids is known to negatively impact sperm production. Maintaining a healthy weight, engaging in regular physical activity, and avoiding harmful substances are crucial preventative measures.
Non-Modifiable Risk Factors
Certain factors are present from birth or develop over time and are less easily modified. These include genetic conditions affecting reproductive organs or hormone production, congenital abnormalities of the reproductive tract, and certain autoimmune diseases. The National Institute of Child Health and Human Development (NICHD) provides information on genetic factors contributing to infertility. Age is a significant factor, notably for women, as fertility declines with age.
Treatment and Support for Infertility
Medical Interventions
Treatment options vary depending on the underlying cause of infertility. These can include medication to stimulate ovulation, surgical procedures to correct structural problems, and assisted reproductive technologies (ART) such as in vitro fertilization (IVF) and intrauterine insemination (IUI). The American society for Reproductive Medicine (ASRM) offers detailed information on ART procedures and success rates.
Multidisciplinary Approach & Integrative Therapies
Recognizing the emotional toll of infertility, a holistic approach is increasingly common.RESOLVE: The National Infertility Association emphasizes the importance of psychological support, including counseling and support groups. While more research is needed,some individuals explore complementary therapies like acupuncture,yoga,and meditation to manage stress and improve overall well-being during treatment. These therapies are frequently enough used in conjunction with conventional medical treatments, not as replacements.
Key Points & Adherence to Guidelines:
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