题型:阅读理解 题类:常考题 难易度:普通
河南省平顶山市2019-2020学年高二上学期英语期末考试试卷
It's 3 a.m. and you're wide awake for the second night in a row. You get up and come to the kitchen for some warm milk that mom says will put you to sleep. So why are you eating a bowl of ice cream with a side of cookies?
You may have heard about two hormones (荷尔蒙) that control our urge to eat: leptin and ghrelin. "The 'l' in leptin stands for lose: It controls appetite and therefore contributes to weight loss," said sleep specialist Dr. Raj Dasgupta, the associate program director of the Sleep Medicine Fellowship at Keck Medicine of USC. "The 'g' in ghrelin stands for gain: This fast-acting hormone increases hunger and leads to weight gain." When you don't have enough sleep, research shows, ghrelin levels increase while leptin lakes a nose dive. The result is an increase in hunger.
But food is food, so that doesn't explain why we want candy instead of carrots. To answer that, you have to look at another system of the body: The endocannabinoid (内源性大麻素) system. It manages everything from sleep to appetite to pain and more.
In a study published in 2016, Hanlon compared the circulating levels of 2-AG, one of the most abundant endocannabinoids, in people who got four nights of normal sleep (more than eight hours) with those in people who only got 4.5 hours. People who were sleep-deprived (缺乏睡眠) reported greater increases in hunger and appetite and had higher afternoon concentrations of 2-AG than those who slept well. They also had a rough time controlling their urges for high-calorie snacks.
All of this research is so new that science doesn't yet know how it all fits together or what can be done about it. And that brings us to the bottom line: There's not going to be a pill any time soon for the sleep-deprived junk-food people. Instead, you'll have to do what the doctor says to reduce your improper cravings (渴望) in the middle of the night: get more sleep.
Welcome to Holker Hall & Gardens
Visitor Information
How to Get to Holker
By Car: Follow brown signs an A590 from JB6, M6.Approximale travel times: Windermere-20 minutes, Kendal-25 minutes, Lancaster-45 minutes, Manchester—-1 hour 30 minutes.
By Rail: The nearest station is Cark-in-Cartmel with trains to Carnforth, Lancaster Preston for connections to major cities & airports.
Opening Times
Sunday-Friday (closed on Saturday)11:00 am-4:00pm,30 March-2nd November.
Admission Charges
Hall & Gardens | Gardens | |
Adults: | £12.00 | £8.00 |
Groups | £9 | £5.5 |
Special Events
Producers: Market 13th April
Join us to taste a variety of fresh local food and drinks. Meet the producers and get some excellent recipe ideas.
Holker Garden Festival 30th May
The event celebrate its 22nd anniversary with a great show of the very best of gardening, making it one of the most popular events in gardening.
National Garden Day 28th August
Holker once again opens is gardens in aid of the disadvantaged. For just a small donation you can take a tour with our garden guide.
Winter Market 8th November
This is an event for all the family. Wander among a variety of shops selling gifs while enjoying a live music show and nice street entertainment.
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