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As part of our ongoing series covering the hallmarks of aging, we are taking a look at deregulated nutrient sensing today and how these four pathways regulate metabolism and influence aging.

To understand studies on nutrient sensing in the context of aging, let’s introduce four key protein groups. In this post, we’ll explore the pathways they help control and how they affect aging. These key proteins are IGF-1, mTOR, sirtuins, and AMPK[2]. We call these proteins “nutrient sensing” because nutrient levels influence their activity[2].

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Right now, you’re carrying around the most powerful computer in existence – the human brain. This naturally super-efficient machine is far better than anything humans have ever built, so it’s not surprising that scientists are trying to reverse-engineer it. Rather than binary bits of information, neuromorphic computers are built with networks of artificial neurons, and now an MIT team has developed a more lifelike synapse to better connect those neurons.

For simplicity’s sake, computers process and store information in a binary manner – everything can be broken down into a series of ones and zeroes. This system has served us well for the better part of a century, but having access to a whole new world of analog “grey areas” in between could really give computing power a shot in the arm.

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In a sci-fi feeling first, engineers at the University of Bristol used the world’s most powerful acoustic tractor beam to demonstrate that it’s possible to stably contain objects larger than the wavelength of sound.

In other words, they were able to levitate objects notably larger than what’s ever been possible before; a feat that theoretically opens up the potential of one day levitating humans.

Acoustic tractor beams use sound, or more specifically soundwaves, to hold particles in mid-air. While magnetic levitation also exists, acoustic levitation tends to work better for handling liquids and solids.

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Diagnosis, Advice, and Treatment: This article is intended for informational and educational purposes only and is not a substitute for professional medical advice. Anti-aging therapies are considered experimental and involve extra risks. The information provided in this article should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed physician should be consulted for the diagnosis and treatment of any and all medical conditions. Call 911 or the equivalent emergency hotline for all medical emergencies. As well, consult a licensed physician before your changing diet, supplement or exercise programs. Photos, External Links & Endorsements: This article is not intended to endorse companies, organizations or products. Links to external websites, depiction/mention of company names or brands, are intended only for illustration and do not constitute endorsements.

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