Sexual activity linked to higher cognitive function in older age
A joint study by two England universities explores the link between sex and cognitive function with some surprising differences in male and female outcomes in old age.
- A joint study by the universities of Coventry and Oxford in England has linked sexual activity with higher cognitive abilities in older age.
- The results of this study suggest there are significant associations between sexual activity and number sequencing/word recall in men. In women, however, there was a significant association between sexual activity in word recall alone - number sequencing was not impacted.
- The differences in testosterone (the male sex hormone) and oxytocin (a predominantly female hormone) may factor into why the male cognitive level changes much more during sexual activity in older age.
Countless studies have been done on the health benefits of sex - from an orgasm giving you clearer skin and a boosted immune system, to the physical activity keeping your blood pressure at a healthy level. A lowered risk of heart disease, the ability to block pain, a lowered risk of prostate cancer, less stress which leads to improved sleeping patterns...all of these are proven benefits of sexual activity.
The health benefits of sex have been studied again and again, and yet, there are still new things we're learning about the benefits on the human body and brain.
Study links sexual activity to higher cognitive function in old age
The results of this study suggest there are significant associations between sexual activity and number sequencing/word recall in men and a significant association between sexual activity in word recall in women.
Image by Jirsak on Shutterstock
Cognitive function has been associated with various physical, psychological, and emotional patterns in older adults - from lifestyle to quality of life, loneliness, and mood changes as well as physical activity levels.
A 2016 joint study by the universities of Coventry and Oxford in England has linked sexual activity with higher/better cognitive abilities in older age.
This longitudinal study used a newly available wave of data from the English Longitudinal Study of Ageing to explore the connections between sexual activity in the older population (50+) with cognitive function.
The study consisted of 6,833 participants between the ages of 50-89 years old.
Two different cognitive function tests were analyzed:
- Number sequencing, which broadly relates to the brain's executive functions.
- Word recall, which relates to the brain's memory functions.
The results of these tests were then adjusted to account for each person's gender, age, education level, wealth, physical activity, and mental health. The reason for this is that the researchers noticed there are often biases in other studies that examine the links between sexual activity and overall health.
For example, in this scenario, without taking those things into account, healthy older Italian men with a continued interest in sex would score higher on these tests. Women, who are more likely to become widowed and lose their sexual partner, would score lower.
While studying the impact of sexual activity on overall health, there are not many studies that focus on the link between sexual activity and cognitive function, and no other study that focuses on sexual activity and cognitive function in older adults.
The results of this one-of-a-kind study suggest there are significant associations between sexual activity and number sequencing/word recall in men. In women, however, there was a significant association between sexual activity in word recall alone - number sequencing was not impacted.
You can see the breakdown of this information here.
Why were the results for males and females so different?
One of the highlights of this study was exploring the differences sexual activity has in cognitive function in older males and older females.
Photo by Gligatron on Shutterstock
Exploring the differences when it comes to the improved cognitive ability between the older males and the older females in this study was one of the highlights of the research.
Testosterone versus oxytocin
Testosterone, which is the male sex hormone, reacts very differently to the brain than oxytocin, which is released in females during sexual activity.
Testosterone plays a key role in many different areas such as muscle mass, facial and pubic hair development, and mood changes. It also impacts your sex drive and your verbal memory and thinking ability.
Testosterone belongs to a class of male hormones, and although the ovaries of a woman do produce minimal amounts of testosterone, it's not enough to compare the impacts on the male and female bodies.
Oxytocin, on the other hand, is produced in the male and female bodies quite similarly, but ultimately the hormone reacts differently in the female body, triggering the portion of the brain responsible for emotion, motivation, and reward.
These differences in testosterone and oxytocin may factor into why the male cognitive level changes much more during sexual activity in older age.
Women's ability for memory recall remains a mystery…
Another study, this time back in 1997, looked at the relationship between gender and episodic memory. The results of this study proved that women have a higher level of performance on episodic memory tasks (for example, recalling childhood memories) than men. The reason for this was not further explored in this study and has remained something of a mystery, even now.
The female brain deteriorates during menopause.
Women very commonly struggle with memory-related problems during and post-menopause. This could be the reason why the original study proved older men had a higher cognitive ability in number sequencing than older women.
Along with menopause-related cognitive decline, women are also at a higher risk for memory impairment and dementia compared to men.
Lead researcher of the original 2016 study, Dr. Hayley Wright, from Coventry University, explains:
"Every time we do another piece of research we are getting a little bit closer to understanding why this association exists at all, what the underlying mechanisms are and whether there is a 'cause and effect' relationship between sexual activity and cognitive function in older people."
- Sleeping too much results in cognitive decline, says study - Big Think ›
- Being married linked to better cognitive function, researchers say ›
- 4 Cognitive Abilities That Actually Peak When You Are Older - Big ... ›
What would happen if you tripled the US population? Join Matthew Yglesias and Charles Duhigg at 1pm ET on Monday, September 28.
The idea of 'absolute time' is an illusion. Physics and subjective experience reveal why.
- Since Einstein posited his theory of general relativity, we've understood that gravity has the power to warp space and time.
- This "time dilation" effect occurs even at small levels.
- Outside of physics, we experience distortions in how we perceive time — sometimes to a startling extent.
Physics without time<p>In his book "The Order of Time," Italian theoretical physicist Carlo Rovelli suggests that our perception of time — our sense that time is forever flowing forward — could be a highly subjective projection. After all, when you look at reality on the smallest scale (using equations of quantum gravity, at least), time vanishes.</p><p style="margin-left: 20px;">"If I observe the microscopic state of things," writes Rovelli, "then the difference between past and future vanishes … in the elementary grammar of things, there is no distinction between 'cause' and 'effect.'"</p><p>So, why do we perceive time as flowing <em>forward</em>? Rovelli notes that, although time disappears on extremely small scales, we still obviously perceive events occur sequentially in reality. In other words, we observe entropy: Order changing into disorder; an egg cracking and getting scrambled.</p><p>Rovelli says key aspects of time are described by the second law of thermodynamics, which states that heat always passes from hot to cold. This is a one-way street. For example, an ice cube melts into a hot cup of tea, never the reverse. Rovelli suggests a similar phenomenon might explain why we're only able to perceive the past and not the future.</p><p style="margin-left: 20px;">"Any time the future is definitely distinguishable from the past, there is something like heat involved," Rovelli wrote for the <a href="https://www.ft.com/content/ce6ef7b8-429a-11e8-93cf-67ac3a6482fd" target="_blank"><em>Financial Times</em></a>. "Thermodynamics traces the direction of time to something called the 'low entropy of the past', a still mysterious phenomenon on which discussions rage."</p>
The strange subjectivity of time<p>Time moves differently atop a mountain than it does on a beach. But you don't need to travel any distance at all to experience strange distortions in your perception of time. In moments of life-or-death fear, for example, your brain would release large amounts of adrenaline, which would speed up your internal clock, causing you to perceive the outside world as moving slowly.<br></p><p>Another common distortion occurs when we focus our attention in particular ways.</p><p style="margin-left: 20px;">"If you're thinking about how time is <em>currently</em> passing by, the biggest factor influencing your time perception is attention," Aaron Sackett, associate professor of marketing at the University of St. Thomas, told <em><a href="https://gizmodo.com/why-does-time-slow-down-and-speed-up-1840133782" target="_blank">Gizmodo</a></em>.<em> "</em>The more attention you give to the passage of time, the slower it tends to go. As you become distracted from time's passing—perhaps by something interesting happening nearby, or a good daydreaming session—you're more likely to lose track of time, giving you the feeling that it's slipping by more quickly than before. "Time flies when you're having fun," they say, but really, it's more like "time flies when you're thinking about other things." That's why time will also often fly by when you're definitely <em>not</em> having fun—like when you're having a heated argument or are terrified about an upcoming presentation."</p><p>One of the most mysterious ways people experience time-perception distortions is through psychedelic drugs. In an interview with <a href="https://www.theguardian.com/books/2018/apr/14/carlo-rovelli-exploding-commonsense-notions-order-of-time-interview" target="_blank"><em>The Guardian</em></a>, Rovelli described a time he experimented with LSD.</p><p style="margin-left: 20px;">"It was an extraordinarily strong experience that touched me also intellectually," he said. "Among the strange phenomena was the sense of time stopping. Things were happening in my mind but the clock was not going ahead; the flow of time was not passing any more. It was a total subversion of the structure of reality."<br></p><p>It seems few scientists or philosophers believe time is completely an illusion.</p><p style="margin-left: 20px;">"What we call <em>time</em> is a rich, stratified concept; it has many layers," Rovelli told <em><a href="https://physicstoday.scitation.org/do/10.1063/PT.6.4.20190219a/full/" target="_blank">Physics Today</a>.</em> "Some of time's layers apply only at limited scales within limited domains. This does not make them illusions."</p>What <em>is</em> an illusion is the idea that time flows at an absolute rate. The river of time might be flowing forever forward, but it moves at different speeds, between people, and even within your own mind.
Dominique Crenn, the only female chef in America with three Michelin stars, joins Big Think Live.
Having been exposed to mavericks in the French culinary world at a young age, three-star Michelin chef Dominique Crenn made it her mission to cook in a way that is not only delicious and elegant, but also expressive, memorable, and true to her experience.
Controversial physics theory says reality around us behaves like a computer neural network.
- Physicist proposes that the universe behaves like an artificial neural network.
- The scientist's new paper seeks to reconcile classical physics and quantum mechanics.
- The theory claims that natural selection produces both atoms and "observers".
Vanchurin interview:<span style="display:block;position:relative;padding-top:56.25%;" class="rm-shortcode" data-rm-shortcode-id="539759cbfd8fcd5b6ebf14a3b597b3f9"><iframe type="lazy-iframe" data-runner-src="https://www.youtube.com/embed/bmyRy2-UhEE?rel=0" width="100%" height="auto" frameborder="0" scrolling="no" style="position:absolute;top:0;left:0;width:100%;height:100%;"></iframe></span>
Vanchurin on “Hidden Phenomena”:<span style="display:block;position:relative;padding-top:56.25%;" class="rm-shortcode" data-rm-shortcode-id="18886ffd5e5840bb19d4494212f88d82"><iframe type="lazy-iframe" data-runner-src="https://www.youtube.com/embed/2NDVdNwsHCo?rel=0" width="100%" height="auto" frameborder="0" scrolling="no" style="position:absolute;top:0;left:0;width:100%;height:100%;"></iframe></span>Vitaly Vanchurin speaking at the 6th International FQXi Conference, "Mind Matters: Intelligence and Agency in the Physical World." The Foundational Questions...
43% of people think they can get a sense of someone's personality by their picture.
If you've used a dating app, you'll know the importance of choosing good profile pics.
Quarantine rule breakers in 17th-century Italy partied all night – and some clergy condemned the feasting
17th-century outbreaks of plague in Italy reveal both tensions between religious and public health authorities.