To learn more about who might benefit from a gel mattress (and how our body temperature affects our REM cycle), we spoke with sleep specialist and neuroscientist Christopher Winter, M.D., who explains, “It is thought that sleep probably works best at a temperature of about 65 to 67 degrees Fahrenheit, and gel mattresses can absolutely help.” Winter encourages people to also be conscious about the types of bedding they are pairing with their cooling mattress....

Everyone will have a different baseline, but when it comes to optimizing your body’s performance, the general goal is to increase your heart rate variability over time. A lower HRV has been linked with diabetes, cardiovascular disease, inflammation, obesity, and psychiatric disorders2, but increasing your HRV helps to calm down your body, minimize stress1, and improve sleep, digestion, concentration, and ultimately, your vitality. Sign us up for all of the above....

Our team previously consulted with experts and podiatrists, rounding up some of the top sneakers for runners, the most comfortable shoes for walking, sneakers for standing all day, and even the best supportive options for people with plantar fasciitis. Today, we’ve sifted through our top picks to see which are discounted in the current holiday sales—and found the best Cyber Monday sneaker deals worth shopping right now. After all, there’s more to a good sneaker than meets the eye....

The concept, called hormesis (which you can read all about here), states that periodic stressors will trigger a cellular response that may slow aging, better equip you to manage future stress, and enhance overall health. Case in point: infrared sauna therapy. Compared to traditional saunas, which use some form of physical heat (wood or stones heated by fire, gas, or electricity) to raise the temperature, infrared saunas rely on infrared light, a wavelength invisible to the human eye that presents itself through heat....

How do you choose your organic skin-care products and what sort of things you should avoid? Based on reliable data from medical journals. When you strip the skin of too much, it provides feedback to the sebaceous glands that the skin does not have enough oil and kicks them into overdrive, exacerbating the problem. Instead, provide the skin with gentle exfoliation and nourish it with the right balance of oils, training the sebaceous glands to settle down and make less sebum....

The intent behind the karezza method is to deepen the sexual and emotional connection, according to certified clinical sexologist Randi Levison. The practice “teaches couples to focus on the entire being, not just a body part,” she says. “It’s all about relaxing and being in the present moment.” The practice has also been known by the Latin name “coitus reservatus,” although this is slightly different from true karezza, because coitus reservatus only involves the penetrating partner withholding from orgasm while encouraging the receptive partner to still have them....

Here are the basics on what the law of attraction is, what it isn’t, and how you can use it to achieve your goals. The idea that we attract what we put out has clearly been around since ancient times, and many credit Buddha with first introducing this notion to the world. The law of attraction operates under the following three principles: Like attracts like—even if we’re not conscious of it....