![]() It then begins to rise, acting as a kind of a biological alarm clock wake-up signal. The average person's circadian cycle is characterized by a reduction in core body temperature of about 0.5 to 1 F around an hour before usual sleep time, dropping to its lowest level between the middle and later span of nighttime sleep. For example, it is understood that both sleep and our body's core temperature are regulated by a circadian clock located within the brain's hypothalamus that drives the 24-hour patterns of many biological processes, including sleep and wakefulness.īody temperature, which is involved in the regulation of the sleep/wake cycle, exhibits a circadian cycle, being 2-3 degrees Fahrenheit higher in the late afternoon/early evening than during sleep, when it is the lowest. Much of the science to support links between water-based body heating and improved sleep is already well-established. When scheduled 1-2 hours before bedtime, it can also hasten the speed of falling asleep by an average of 10 minutes. Meta-analytical tools were then used to assess the consistency between relevant studies and showed that an optimum temperature of between 104 and 109 degrees Fahrenheit improved overall sleep quality. They extracted pertinent information from publications meeting predefined inclusion and exclusion criteria to explore the effects of water-based passive body heating on a number of sleep-related conditions: sleep onset latency - the length of time it takes to accomplish the transition from full wakefulness to sleep total sleep time sleep efficiency - the amount of time spent asleep relative to the total amount of time spent in bed intended for sleep and subjective sleep quality. In collaboration with the UT Health Science Center at Houston and the University of Southern California, the UT researchers reviewed 5,322 studies. The paper explaining their method was recently published in the journal Sleep Medicine Reviews. "The only way to make an accurate determination of whether sleep can in fact be improved was to combine all the past data and look at it through a new lens." ![]() candidate in the Department of Biomedical Engineering and lead author on the paper. Therefore we can subtract two lots of 60, which is 2 hours.įor example, convert 225 minutes into hours and minutes."When we looked through all known studies, we noticed significant disparities in terms of the approaches and findings," said Shahab Haghayegh, a Ph.D. ![]() The number of times 60 can be subtracted is the number of hours and the remainder is the number of minutes.įor example, convert 175 minutes into hours and minutes. To convert a time in minutes to hours and minutes, subtract multiples of 60 from the number. There are 5 hours.Ġ.66 × 60 = 40 and so, there are 40 minutes.Īlternative Method for Converting a Time to Hours and Minutes The number of minutes is found by multiplying the decimal part of the number by 60Ġ.5 × 60 = 30 and so there are 30 minutes.įor example, convert 340 minutes to hours and minutes. The integer part of the result is the part of the number in front of the decimal point.īefore the decimal point is a 2. The number of hours is the integer part of the result The number of minutes is found by multiplying the decimal part of the number by 60.įor example, convert 150 minutes to hours and minutes.The number of hours is the integer part of the result.To convert a time in minutes to hours and minutes: How to Convert a Time to Hours and Minutes The following table shows the conversion of minutes to hours. The formula to convert minutes to hours is: Hours = Number of minutes ÷ 60.įor example, convert 240 minutes to hours.Ģ40 ÷ 60 = 4 and so, there are 4 hours in 240 minutes. For example, 120 minutes = 2 hours because 120 ÷ 60 = 2. To convert minutes to hours, divide the number of minutes by 60. Therefore there are 150 minutes in 2 and a half hours.įor example, find the number of minutes in 3 hours 40 minutes.ġ80 + 40 = 220 minutes and so, there are 220 minutes in 3 hours 40 minutes. We can combine values from this table to find the number of minutes in a given number of hours.įor example, convert two and a half hours to minutes. The table below shows some common conversions of hours to minutes. The formula to convert hours to minutes is: minutes = hours × 60.įor example, convert 4.5 hours to minutes.Ĥ.5 × 60 = 270, therefore there are 270 minutes in 4.5 hours. For example, 3 hours = 180 minutes since 3 × 60 = 180. To convert hours to minutes, multiply the number of hours by 60.
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