By now, the connection between sleep and weight gain has been well established. Numerous studies have provided evidence that sleeping too little - less than five hours - messes with your hormones, slows down your metabolism and reprograms your body to eat more.
But just how serious are the consequences in terms of numbers?
A new study published in PLOS One takes a stab at this question by studying the relationship between sleep duration and a number of quantifiable factors: Waist circumference, blood pressure, lipids, glucose, thyroid hormones and other important measures of a person's metabolic profile. The research, led by the Leeds Institute of Cardiovascular and Metabolic Medicine and the School of Food Science and Nutrition, involved 1,615 people ages 19 to 65 in Great Britain.
The most striking suggestion was that getting insufficient sleep may make you go up a clothing size.
People in the study who were sleeping an average of six hours each night had waist measurements about 1.2 inches (or 3 centimeters) more than those getting nine hours of sleep a night. Those with less sleep also weighed more. The relationship between more sleep and smaller waists and a lower body mass index (BMI) appeared to be almost linear, as shown below.
The findings appear to contradict other studies that show that too much sleep - nine hours or more - might have a similar impact on the body as too little sleep. This new study appears to show that waist circumference and BMI are lowest for those with 12 hours of sleep.
The theory of why this relationship exists has to do with two hormones that help tell you when to eat and when to stop. Less sleep upsets the balance, making you eat more. Combine that with the slower metabolism that people with lack of sleep appear to have it's no wonder that people are prone to becoming larger and gaining weight.
The PLOS One study also found another worrisome difference between people who had sufficient and insufficient sleep. They found that shorter sleep appeared to be linked with reduced levels of HDL or "good" cholesterol in the blood.
Researcher Greg Potter of Leeds, a co-author, expressed concern that insufficient sleep may contribute to obesity and type 2 diabetes: "Understanding why people gain weight has crucial implications for public health."
The Washington Post
Tue Aug 01 2017
Less sleep upsets the balance, making you eat more.
ISIS Malaysia's perspective of Budget 2025
An excellent rakyat-centric budget under the overarching principle of a caring and humane economy.
Budget 2025: Record increase in STR, SARA aid initiatives
The government will provide a significant boost to the Sumbangan Tunai Rahmah (STR) and Sumbangan Asas Rahmah (SARA) initiatives next year.
Budget 2025: EPF contributions to be made mandatory for foreign workers – PM Anwar
The government plans to make it compulsory for all non-citizen workers to contribute to the Employees Provident Fund (EPF).
What policies to expect from Indonesia's new President Prabowo
Prabowo will be open to foreign investment, his aide has said, such as by offering investors management of airports and sea ports.
Budget 2025: Govt allocates RM470 mil to empower women's participation in PMKS
The Women's Leadership Apprenticeship Program will be intensified as an effort to produce more female corporate personalities.
Israel sends more troops into north Gaza, deepens raid
Residents of Jabalia in northern Gaza said Israeli tanks had reached the heart of the camp, using heavy air and ground fire.
Indonesia ramps up security ahead of Prabowo's inauguration
Prabowo Subianto will be sworn in as Indonesia's president on Sunday with Vice President-elect, Gibran Rakabuming Raka, also taking office.
Immediate allocation of RM150 mil for local authorities, DID to tackle flash floods
Datuk Seri Anwar Ibrahim said this allocation is intended to address the recent flash floods that hit the capital and several major towns.
Budget 2025: Sabah, Sarawak to continue receiving among highest allocations - PM
Sabah and Sarawak continues to be prioritised under Budget 2025, with allocations of RM6.7 billion and RM5.9 billion respectively.
NFOF will be operational in November 2024 with funding of RM1 bil
PM Anwar Ibrahim said NFOF will support venture capital fund managers to invest in startup companies with RM300 million set aside for 2025.
Minimum wage to increase to RM1,700 effective Feb 1, 2025
The Progressive Wage Policy would be fully enforced next year with an allocation of RM200 million, benefiting 50,000 workers.
Bursa Malaysia ends higher on Budget 2025 optimism
The benchmark index, which opened 1.85 points higher at 1,643.29, moved between 1,641.71 and 1,649.31 throughout the trading session.
Five important aspects relating to people’s lives in Budget 2025 - PM
The focus is on driving the MADANI Economy, speeding reforms, cutting red tape, raising wages, and tackling the cost of living.
Economic outlook: Govt plans to leverage, expand existing city transit system
The expansion aims to provide a more efficient and reliable public transportation network, reduce congestion, and improve accessibility.
Economic outlook: Budget 2025 to lay foundation for a digital-driven economy
The report said Budget 2025 will entail efforts to position Kuala Lumpur as a top 20 global startup hub by 2030 through the KL20 initiative.
Economic outlook: Corruption and lack of accountability hinder economic progress
Special Cabinet Committee on National governance is established to curb corruption, law reforms to modernise outdate regulations, MoF said.
National Wages Consultative Council will be strengthened
The govt will also incentivise hiring women returning from career breaks, offer job matching and improve care services facilities.
Economic outlook: Ensuring 11 years of compulsory education for all children
Budget 2025 will continue prioritising upskilling and retraining initiatives to equip workers with the latest skill sets necessary.
Consolidated public sector projected to record lower surplus of RM41.7 bil 2024
The MoF said the consolidated general government revenue is estimated to increase slightly to RM384.7 billion in 2024.
PM announces substantial Budget 2025 hastening Malaysia to become Asian economic powerhouse
Datuk Seri Anwar Ibrahim said it would create jobs and also tackle financial leakages to enhance public spending efficiency.