Increasing fluid intake by about a liter per day appears to have no negative effects in healthy older men , dutch researchers report . dr . mark g . spigt of maastricht university and colleagues note in the journal of the american geriatric society that older people are often dehydrated , partly because their sensation of thirst may be blunted 據(jù)路透社4月6日報道,荷蘭馬斯特里赫特大學(xué)的馬克斯皮格特博士及其同事在美國老年病學(xué)協(xié)會雜志上撰文指出,那些年紀較大的人經(jīng)常會出現(xiàn)身體脫水的現(xiàn)象,其中部分原因在于其自身對于口渴的感覺可能已經(jīng)變得十分遲鈍了。