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CIRCADIAN CLOCK
Japanese researchers in 2009 placed five men individually inside a dark room and captured a faint glow from their bodies, 1,000 times too weak for human eyes to see; but strangely, the invisible light wasn't constant: it grew stronger through the day and peaked around 4 p.m.- 8-hour sleep rule is old and ‘too simple’, research says. Find out how much sleep do humans actually need
- In 1997, NASA sent 64 desert beetles to Russia’s Mir space station with tiny wheels tracking their every movement; their movements helped scientists understand how light regulates biological clocks in microgravity
- Psychology says people who prefer working night shifts may be following their natural body clockPeople who prefer night shifts are not necessarily antisocial, unmotivated or unconventional. They may simply have anevening chronotype, fe...27 Aug, 2026, 02.29 PM IST
- On the ISS, astronauts see 16 sunrises every day as the station circles Earth, but their bodies refuse to follow the 90-minute cycle, forcing crews to stick to a familiar 24-hour routine despite living through multiple days and nightsAstronauts on the International Space Station experience sixteen sunrises daily. They follow a strict twenty-four-hour schedule, ignoring t...12 Aug, 2026, 11.03 PM IST
- In 1989, scientists demonstrated that carefully timed bright light can reset the body's biological clock. Years later, it produced breakthroughs in treating jet lag, insomnia, shift-work disorder and disrupted sleepIn 1989, scientists proved bright light therapy resets your biological clock. It changed sleep medicine overnight. Timed light exposure shu...07 Aug, 2026, 06.41 PM IST
- Psychology says people who never skip breakfast on weekends may rely more on routines than they realize, and research explains whyMany people break weekday schedules on weekends, while some maintain consistent breakfast times. Breakfast choices are often driven by rout...07 Aug, 2026, 08.34 AM IST
- Psychology explains why your brain wakes you just before your alarmYour brain anticipates waking by adjusting hormones and body temperature. This internal body clock, known as the circadian rhythm, regulate...31 Jul, 2026, 12.29 PM IST
- In 2021, fifteen volunteers sealed themselves inside a French cave without clocks, phones, or sunlight for 40 days, but when they emerged, most believed they had spent far less time undergroundFifteen volunteers spent forty days in a French cave without any external time cues. Their internal body clocks stretched, causing a signif...29 Jul, 2026, 04.40 PM IST
- Psychology uncovers why aches and pains feel more intense at night - and why your mind may be making it worsePain often feels worse at night due to fewer distractions and increased stress. Poor sleep cycles can heighten pain sensitivity and reduce ...23 Jul, 2026, 11.44 AM IST
- Returning to our circadian rhythmThe World Cup's late-night games disrupted sleep for many in India, turning them into makeshift football analysts, all thanks to caffeine a...20 Jul, 2026, 11.43 PM IST
- Why the same foods you eat during the day can lead to belly fat, higher blood sugar & poorer cholesterol levels at night; study has the answerNight owls consuming high-energy foods late at night show greater body fat. Evening-types eat less in the morning and more after 8 pm. This...20 Jul, 2026, 03.37 PM IST
- Psychology says people who prefer staying awake late at night are not insomniacs, they may be looking for uninterrupted focusStaying up late doesn't automatically indicate laziness, poor self-control, or a particular personality type. At the same time, research co...17 Jul, 2026, 03.16 PM IST
- Psychology says people who follow a strict daily schedule and wake up, eat and sleep at fixed times aren't rigid thinkers: What this behavior may reveal?Psychology says people who follow a strict daily schedule and wake up, eat and sleep at fixed times aren't always trying to control everyth...17 Jul, 2026, 03.26 AM IST
- Your dog knows the clocks changed, even if they can’t tell time —and what happens inside their brain is truly fascinating"Your dog isn't watching the clock—but it knows something changed." If your pet suddenly wakes you earlier, begs for dinner at the "wrong" ...14 Jul, 2026, 09.32 PM IST
- Psychology says people whose bodies start itching just as they try to sleep aren't imagining it, the brain may be amplifying normal sensationsPsychology suggests that people who feel sudden itching sensations in their bodies just before sleep aren't feeling something abnormal, it ...09 Jul, 2026, 09.37 PM IST
- Psychology says people who wake up before sunrise are not trying to bring structure to their day, they may be trying to listen to their bodyPsychology says people who naturally wake up before sunrise may have unique personality traits, stronger self-regulation, and different bio...01 Jul, 2026, 08.33 PM IST
- Why some employees struggle to work in morning shifts while others dislike later hour shifts, Harvard scholar explains the biological reasonSome employees naturally perform better in the morning, while others are more productive later in the day. According to Harvard-affiliated ...24 Jun, 2026, 09.54 PM IST
- In 1962, a French geologist descended into a dark underground cave, but when he emerged more than two months later, he had lost track of time and helped reveal the human body's internal clockMichel Siffre's 1960s cave experiment revealed a hidden internal clock within humans. Isolated from all external time cues, his own sense o...18 Jun, 2026, 02.59 PM IST
- Research suggests people who walk outside within hour of waking are using morning light exactly the way the body was built toMornings often begin indoors, but research suggests that getting outside soon after waking can significantly improve sleep, energy levels a...15 Jun, 2026, 02.01 PM IST
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