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.
Minimize triggers of hot flashes, including spicy foods, hot environments, caffeine, and constrictive clothing; Recommendations. If you continue to suffer from hot flashes and nausea, talk to your doctor. There are alternative treatments for hot flashes, which must be discussed fully with a doctor before being considered.