Why do antihistamines cause weight gain? And how does hormonal birth control affect metabolism?In this episode, Lara looks at:how common medications affect metabolismwhy birth control that is *androgenic* is more likely to cause weight gain, andwhether natural progesterone is more likely to cause weight gain or weight loss.Links:The histaminergic system as a target for the prevention of obesity and metabolic syndromeHigh H1-affinity antidepressants and risk of metabolic syndrome in bipolar disorderNatural treatment of menstrual migrainesWeight change among women using intramuscular depot medroxyprogesterone acetate, a copper intrauterine device, or a levonorgestrel implant for contraceptionImpact of micronized progesterone on body weight, body mass index, and glucose metabolism: a systematic reviewCyclic progesterone therapy for PCOS