People are desperately trying to live forever. Here are the biggest anti-aging trends sweeping the nation.

cold plunge — Cold plunges promote a surge of neurotransmitters in the body. They're one of the many ways people are trying to stave off the aging process.
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The quest for longevity has gone mainstream as more people seek ways to reverse the aging process.
People are taking prescription pills, cold plunges, and fasting intermittently to extend their lifespan.
Here are some of the top longevity trends right now, according to industry experts.

People are implementing a range of behavioral and lifestyle practices in the hopes of reversing aging. Some of the most popular practices include…

Source: Insider

Cold exposure

A man in ice water. — Exposure to extreme cold could help us cope better with stress.
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There is a growing body of scientific evidence that supports cold exposure as an anti-aging hack.

Whether you take a plunge into a pool of ice cold water, or try cryotherapy — which involves spending a few minutes in a below freezing chamber — cold exposure has benefits that may help slow down the clock.

Dr. Anant Vinjamoori, chief medical officer of longevity-focused healthcare company Modern Age, told Insider that cold exposure produces effective results in the short and long term.

A plunge into an ice cold bath results in "a surge in the production of neurotransmitters such as epinephrine and dopamine" which have immediate rejuvenating and energizing effects, he said.

"Over the medium to long term, there is some evidence that cold exposure may reduce systemic inflammation, which is known to be a driver of many chronic diseases," Vinjamoori added.

Fasting

In 2019, Jack Dorsey said that he only eats one meal a day and fasts all weekend — which might be bordering on an eating disorder, experts say.

However, research does suggests that time-restricted eating patterns can result in health benefits for those with diabetes and obesity or even enhance the body's defenses against oxidative stress.

"For me, the primary benefit of time-restricted eating is regulating circadian rhythms. Sleep quality almost always improves by limiting the consumption of calories in the evening hours," said Modern Age's Vinjamoori.

Adopt a plant-based diet

A pile of vegetables. — Cutting out animal protein and adopting a plant-based diet is another key to longevity.
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Research has shown that those who cut out animal protein— and stick to a relatively plant-based diet— are likely to live longer and healthier lives.

David Sinclair, a Harvard Medical School professor and longevity researcher, said that high animal protein diets really only help people feel better in the short-term.

"I'm convinced, and the data shows it from population studies, that a carnivorous diet is not a longevity producing diet in the long run," he said on an episode of "The Knowledge Project Podcast."

In many of the world's Blue Zones— areas where people tend to reach the age of 100— people are likely to have a relatively plant-focused diet.

Red light therapy

Red light therapy uses LED lights or lasers to expose the body to red light— the longest wavelength of light on the visible spectrum. There is research to suggest that exposing oneself to red light for five to 20 minutes may increase production of adenosine triphosphate, which is a compound that provides and stores energy for the cells.

"While more research is needed to understand the full benefits and mechanisms of red light therapy, there is evidence to suggest it may be beneficial in improving certain skin conditions including acne, aging, hair loss, wound care, and sun damage," dermatologist Laura Buford previously told Insider.

It's not uncommon for those who are serious about longevity to have a medicine cabinet full of supplements. Take a look at some of trending supplements right now…

there's NMN ...

a pill in someone's hand, next to a glass of water — Harvard Medical School professor David Sinclair recommends taking NMN, a supplement that can help increase the body's levels of NAD+.
Iryna Veklich, Getty Images

Nicotinamide Mononucleotide, or NMN, is a supplement that can help boost levels of a critical coenzyme in the body called NAD+.

NAD+ plays an important role in facilitating metabolic processes and maintaining healthy cellular function.

Harvard Medical School professor Sinclair — who has studied the relationship between NAD+ and aging — said in an interview with the YouTube channel Reverse Aging Revolution that the human body uses NAD+ as "a measure of adversity." As humans get older, NAD+ levels decrease, which mean the body's defense enzymes and repair enzymes take a hit and humans "succumb to aging" Sinclair said.

Since NAD+ is a large molecule, it's difficult to take it directly. Sinclair recommends taking its building blocks like B3, Nicotinamide riboside (NR), or NMN.

"What we've discovered in people, in clinical trials, is that the closer you get to the NAD itself, the better the boost in NAD that you get," Sinclair said, which is why he recommends NMN.

and Ashwagandha.

ashwagandha root next to ashwagandha powder — Ashwagandha can be bought in a root or powder.
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Ashwagandha is an herb that's long been used for anti-aging in Ayurveda, an ancient system of holistic medicine originating in India.

The herb, often classified as an adaptogen, has a host of health benefits that range from easing anxiety and stress to soothing arthritis to boosting cognitive function. Modern Age's Vinjamoori said that ashwagandha has been shown in research studies to reduce cortisol, a hormone associated with stress, and improve sleep in people with insomnia.

Recent research has also shown that ashwagandha could be a promising agent in anti-aging treatments. A study published in the Journal of Clinical Medicine in 2020 found that ashwagandha may help maintain the length of the key proteins at end of chromosomes known as telomeres. Telomeres are often shortened in the process of DNA replication which has been pointed to as the main factor that "speeds up cell ageing and promotes degeneration processes" the study noted.

As people get more serious about their anti-aging regimens, they're turning to prescription pills, too…

like Metformin

metformin pills spilling out of a bottle — Metformin has become popular with biohackers for its potential to delay the onset of age-related diseases.
Corbis News via Getty Images

Metformin, a pill prescribed for diabetes, is increasingly being used by biohackers as a way to improve how humans age, and slow the onset of diseases like cancer, cognitive decline, and vision loss, Insider reported.

The drug helps regulate blood sugar and decrease appetite, essentially giving the metabolism a boost and stimulating a cellular clean-up process known as autophagy, Insider reported.

In his book Lifespan, Harvard professor Sinclair said he takes a gram of metformin every morning along with his yogurt in the hope that it will regulate his metabolism and help his organs remain younger and healthier, Insider reported.

OpenAI CEO Sam Altman also said his personal anti-aging regimen includes metformin.

hormone therapy...

The body's balance of hormones can shift with age and spur a variety of age-related conditions like weight gain, mood swings, fatigue, and lower sex drive, two longevity-focused doctors told Insider. As a result, they've seen an increasing patient interest in hormone therapy.

Modern Age's Vinjamoori told Insider that testosterone replacement has gained popularity among men and women as its become clear that optimal testosterone levels can impact mood, libido, and even metabolism.

"The importance of testosterone for women, in particular, is underappreciated— testosterone is actually the most abundant hormone in a woman's body and is the first hormone to decline with age," Vinjamoori told Insider.

It's not just testosterone, but also sex hormones like estrogen and progesterone that are being sought out by patients. Vinjamoori said the options for hormone therapy range from pills to creams to patches to pellets.

and Rapamycin.

A pill — Rapamycin can slow down cellular growth and reproduction which means it might be a way for "aging bodies turn down troublesome age-related inflammation."
Getty Images

Rapamycin is an immunosuppressive drug used to help treat some cancers. It's also used in kidney transplants to help the an organ recipient's body accept new kidneys, Insider reported.

The pill can slow down cellular growth and reproduction which means it might be a way for to "turn down troublesome age-related inflammation" which can contribute to age-related diseases like cancer and Alzheimer's, Insider reported.

Insider reported that researchers have already seen rapamycin slow aging in flies, crustaceans, yeast, mice. In humans, studies have shown that it may help improve immune function, especially in older adults, Insider said.

Despite its potential to be a "fountain of youth" no one has really nailed down the right way to regulate the drug for aging, Insider said.

Matt Kaeberlein, a longevity researcher studying rapamycin's effects on humans, previously told Insider "the doses that people are taking off-label are all over the place," adding that, "it's the wild west."

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