20 citations,
February 1977 in “The anatomical record” Excess vitamin A changes skin and hair follicle development and affects polysaccharide distribution.
1 citations,
May 2011 in “Journal of Obstetrics and Gynaecology” Hair loss in postmenopausal women due to ovarian hyperthecosis is rare, but removing the ovaries can significantly improve the condition.
Hair keratin treatments can be harmful, potentially causing health issues like skin reactions and cancer.
724 citations,
April 2004 in “Lancet Oncology” Chemotherapy in the first trimester of pregnancy is risky, but in the second and third trimesters, it's generally safe with careful drug selection and timing.
January 1989 in “Side effects of drugs annual” Some cancer and immune system drugs can cause serious side effects, including heart, lung, nerve, and organ damage, which need careful monitoring and management.