People with allergic rhinitis sleep badly, which affects their daytime performance and quality of life. Researchers studied disease severity and sleep quality in 2275 adults with mostly moderate-severe allergic rhinitis (Clinical and Experimental Allergy 2012;42:1080-7, doi:10.1111/j.1365-2222.2011.03935.x). Sleep quality was worst in those with moderately severe and severe rhinitis. Nasal obstruction and rhinitis specific deterioration in the quality of life were associated with poorer sleep quality.

Evidence from randomised controlled trials has translated successfully into the real world when it comes to the use of magnesium sulphate for pre-eclampsia and eclampsia. According to a systematic review, maternal outcomes have improved worldwide (including in Bangladesh, India, Pakistan, and Nigeria; International Journal of Gynecology and Obstetrics 2012;118:90-6, doi:10.1016/j.ijgo.2012.01.028). Magnesium has lowered risks of maternal death, recurrent seizure, and major morbidity, and has reduced risks of full blown eclampsia, results that …