His chronicle of his trip, The naturalist on the River Amazons, became a bestseller when it was published in 1863.
Hot flashes and nausea are most commonly caused by hormonal imbalances in the body, most notably, by sex hormones. For women, a decrease in estrogen is often to blame, whereas in men, testosterone deficiency can create the problem. Sometimes, the symptoms occur for reasons not related to those hormones at all.
If youâre having treatment for breast cancer, hot flashes can be more intense and last longer, particularly if menopause was medically induced. Several treatments for breast cancer can cause hot flashes: 1  ovarian shutdown or removal. 2  chemotherapy. 3  hormonal therapy: Arimidex (chemical name: anastrozole) Aromasin (chemical name: exemestane) Evista (chemical name: raloxifene) Fareston (chemical name: toremifene) Faslodex (chemical name: fulvestrant) Femara (chemical name: letrozole) tamoxifen.