Need Enough Sleep.老年人也需要充足的睡眠，23-5.18。
·the popular notion that older people need the popular notion that less sleep than younger adults is a myth scientists say white elderly people to sleep for fewer hours than they dic they were younger this has a negative effect on their brain's performance benefit from getting more according toresearch Sean Drummond a psychiatrist at the university of California San Diego said that older people are more likely to suffer from broken white younger people are better at sleeping efficiently straight through the night more sleep in old age however is associated with better health and most older people would feel better and more alert if they slept for longer periods ， he said the ability to sleep in one chunk overnight goes down as but the amount of steep we need to function does not change doctor Drummond told the American association for the advancement of science conference In San Diego it's definitely a myth older people need less sleep the healthier an adut is the more they did when they were our data suggests that adults would benefit from continuing to get as much sleep as they did in their thirties that's different from person to person but the amount of sleep we had at 35 is probably the same amount as we need at 年龄 as we need at老年人也需要充足的睡眠。
科学家们认为老年人需要的睡眠时间比年所需的睡眠总时长没变。老年人的睡眠时长往往比他们年轻的时候少，但这对他们的大脑性能有负面作用多睡一点是有益处的。加利福良大学圣地亚哥分校精神病学家肖恩德拉蒙德说老年人更容易时睡时，而年轻人则可以高效的一觉睡到天亮。但是年老时睡眠的时间越长意味着拥有更健康的身体。对于大多数的老年人来说如果他们睡眠的时间能够长一些的话他们就会感觉更好，反应也更灵敏。
他说道随着年龄的增长人们安睡一夜的能力下降，但为了确保身体运行良所需的睡眠总时长没变。德拉蒙德在圣地亚哥的美国科学促进协会会议老年人所需要的睡眠时间更这一观点是绝对错误的因为老人越健康他需要的睡眠时间就越会像他年轻时那样多。他们的数据表明老年人如果能够一直保持他们在30多岁时的睡眠时间将会从中受益，虽然因人而异但75岁时所需的睡眠量很可能和35岁所需要的睡眠量相同。
