Women are fully capable of strenuous athletic competition. There are no physiological reasons to exclude women from endurance sports. Title IX was signed June 23, 1972, prohibiting sex discrimination in federally funded education programs including athletics.
When Kathrine Switzer registered for the 1967 Boston Marathon under her initials K.V. Switzer, she had been training seriously for the distance for months and had run the course in practice. Race official Jock Semple did not know this when he lunged at her during the race, grabbed her bib number, and shouted at her to get out. Photographs of the encounter were published in newspapers across the United States. Switzer finished the marathon.
The official position that women were physiologically incapable of running 26.2 miles was not merely prejudice dressed as biology; it was stated as medical fact. Women had been banned from Olympic track events longer than 800 meters since the 1928 Amsterdam Games, in which several female runners appeared distressed at the finish of the 800-meter race. Physicians and athletic officials interpreted visible fatigue as evidence of biological unsuitability and the event was removed from the Olympic program. It was not reinstated until 1960.
The arguments advanced were physiological: women were said to have smaller lung capacity relative to body size, lower oxygen-carrying capacity, hormonal systems unsuited to sustained exertion, and inadequate cardiovascular recovery. Long-distance running in particular was described as liable to cause uterine prolapse, hormonal disruption, and infertility. These claims circulated in medical literature and physical education scholarship through the first half of the twentieth century with minimal systematic testing.
The evidence, when sought, did not support the claims. Exercise physiologists conducting controlled comparisons in the 1960s and 1970s found that trained female athletes had cardiovascular and respiratory capacities that differed quantitatively from male athletes but were not categorically limited. Women's aerobic metabolism functioned efficiently over long distances. Studies of female runners completing marathon distances found no documented increase in reproductive complications. The specific physiological harms predicted by opponents of women's distance running did not materialize in clinical observation.
The regulatory changes came alongside the scientific ones. Title IX of the Education Amendments of 1972 prohibited sex discrimination in educational programs receiving federal funding in the United States, requiring comparable women's athletic programs at schools and universities. The Amateur Athletic Union had permitted women to enter marathons officially since 1971. The International Olympic Committee added the women's marathon to the program in 1984, 88 years after the first Olympic men's marathon.
Joan Benoit Samuelson won the first Olympic women's marathon in 2 hours, 24 minutes, and 52 seconds, a time that would have won the men's marathon at every Olympics through 1952. The gap between elite male and female marathon times has remained at approximately 10 to 12 percent since the 1980s, consistent with performance differentials across other endurance sports and attributable to differences in average body composition and testosterone-mediated physiology, not to any fundamental incapacity for the distance.
Switzer returned to the Boston Marathon fifty years later, completing the course at age 70 wearing the same bib number, 261. The medical arguments that had supported the ban rested on the assumption that female physiology set a categorical limit. The limit was not categorical. It was a boundary drawn by assumption and enforced by institutional authority, and it dissolved when women were permitted to run.
Women are biologically more emotional and less rational than men, and less capable of mathematics or professional careers.
No reliable biological evidence supports innate female inferiority in rationality or mathematical ability. Performance gaps largely disappear when controlling for socialization and stereotype threat, and have narrowed dramatically wherever structural barriers have been removed.
Abstinence-only sex education is the most effective approach to preventing teen pregnancy and STIs.
Multiple large-scale studies found that abstinence-only programs do not delay sexual initiation, reduce teen pregnancy, or lower STI rates compared to comprehensive sex education. Some studies found higher rates of unprotected sex among abstinence-pledgers.
Drugs approved for use in pregnant women have been adequately tested for effects on fetal development.
Thalidomide caused severe birth defects (phocomelia) in over 10,000 children in Europe and elsewhere. FDA official Frances Kelsey blocked US approval, sparing the US from the worst. The crisis led to the 1962 Kefauver-Harris Amendment requiring proof of drug efficacy and safety.
Conception outside the human body is biologically impossible. Human reproduction requires natural intercourse.
In vitro fertilization (IVF) is possible. Louise Brown, the first IVF baby, was born July 25, 1978 - while students graduating that year were in their last summer of high school.