All posts tagged: Weights

Lifting weights builds a sharper mind and reduces anxiety in older women

Lifting weights builds a sharper mind and reduces anxiety in older women

Published by José Betancourt

Lifting weights provides a robust method for older women to improve their memory and mental health, regardless of whether they lift heavy weights for fewer repetitions or lighter weights for more repetitions. The recent clinical trial, published in the Journal of Affective Disorders, highlights exercise as a highly effective, non-pharmaceutical treatment for protecting the aging mind. The findings reveal that structured physical exertion delivers vast psychological benefits. As people age, they routinely face a gradual decline in multiple physical capabilities alongside an increased risk of cognitive impairment. Women in particular often experience heightened vulnerability to depression and anxiety in their later years. This elevated risk stems from a combination of biological shifts associated with menopause, hormonal changes, and various evolving social factors. Over time, poor mental health can accelerate physical and cognitive decline. Medical professionals routinely prescribe cardiovascular and resistance training to preserve physical independence. Beyond building muscle mass and raw physical strength, lifting weights initiates biological changes that protect the brain. Muscular contractions release specialized proteins into the bloodstream that travel to the brain, …

Lifting weights can slow down biological brain aging in older adults

Lifting weights can slow down biological brain aging in older adults

Published by José Betancourt

Lifting weights might help keep your mind young. A new study published in GeroScience suggests that older adults who engage in regular resistance training can actively slow down the biological aging process in their brains. These findings provide evidence that strength-building exercises offer widespread benefits for long-term cognitive health. Scientists have consistently linked physical exercise to better memory, sharper thinking, and a lower risk of brain diseases. Past studies tend to focus on how aerobic workouts, like running or swimming, change specific isolated parts of the brain. For instance, many projects look at changes in the physical size of the hippocampus, a brain region tied to memory. As a result, the effects of resistance training on the entire brain remained mostly a mystery. Scientists wanted to see if lifting weights could improve overall brain health rather than just tweaking a single area. To do this, they used advanced computer models called brain clocks. A brain clock is a mathematical tool that analyzes medical images of a person’s brain to guess their age based on biological …

Mistral AI just released a text-to-speech model it says beats ElevenLabs — and it’s giving away the weights for free

Mistral AI just released a text-to-speech model it says beats ElevenLabs — and it’s giving away the weights for free

Published by skeptic

The enterprise voice AI market is in the middle of a land grab. ElevenLabs and IBM announced a collaboration just this week to bring premium voice capabilities into IBM’s watsonx Orchestrate platform. Google Cloud has been expanding its Chirp 3 HD voices. OpenAI continues to iterate on its own speech synthesis. And the market underpinning all of this activity is enormous — voice AI crossed $22 billion globally in 2026, with the voice AI agents segment alone projected to reach $47.5 billion by 2034, according to industry estimates. On Thursday morning, Mistral AI entered that fight with a fundamentally different proposition. The Paris-based AI startup released Voxtral TTS, what it calls the first frontier-quality, open-weight text-to-speech model designed specifically for enterprise use. Where every major competitor in the space operates a proprietary, API-first business — enterprises rent the voice, they don’t own it — Mistral is releasing the full model weights, inviting companies to download Voxtral TTS, run it on their own servers or even on a smartphone, and never send a single audio frame …

No equipment? This beginner-friendly workout slows things down to help you build strength without weights

No equipment? This beginner-friendly workout slows things down to help you build strength without weights

Published by Jenni Sidey

My car broke down recently, which meant I had no way of transporting weights to my weekly circuit training class, so I had to design a workout that used minimal equipment. The solution? Introducing isometric holds and tempo training. Isometric holds are exercises in which you hold a position rather than use movement. To put it technically, it’s an exercise that involves static muscle contractions without joint movement—such as planks and wall sits. They are often used in rehabilitation, pain management and stability training because they reduce joint impact while strengthening supporting muscles. The low-impact nature of isometric holds makes them ideal for beginners and seniors, or people recovering from injury. Article continues below You may like Alongside the isometric moves, I added tempo training, tempo simply referring to the speed at which you perform the movements. A slower tempo increases the time your muscles are under tension, which makes the exercise harder—building strength, muscle mass and body control without the need for heavy (or indeed any) weights. When you slow down an exercise move, …

Doctors Want More Women Lifting Weights. Experts Say Welcoming Gyms and Education Would Help

Doctors Want More Women Lifting Weights. Experts Say Welcoming Gyms and Education Would Help

Published by Sam Flores

During her first year of college, Elisabeth Bradley was inspired to try weightlifting after she followed a woman tracking her fitness transformation on social media, one barbell at a time. Then, Bradley found herself to be the only woman in the weight room at San Diego State University. “I felt like I stuck out a lot, and I just thought, ‘OK, I’m gonna look dumb,’” she says. Intimidated by a room full of grunting, muscular men, she moved over to the cardio area, mirroring countless women who, for various reasons, avoid the free weights and machines. But with research mounting on the benefits of resistance training, experts say a few things need to change at the gym to make it more enticing to women. Michelle Segar, a behavioral scientist at the University of Michigan who studies exercise habits, said that making the environment more palatable and familiarizing women better with weights will lead more to use them. More representation will in turn get more women to continue. Why women should lift weights Resistance training has …

Nvidia says it can shrink LLM memory 20x without changing model weights

Nvidia says it can shrink LLM memory 20x without changing model weights

Published by skeptic

Nvidia researchers have introduced a new technique that dramatically reduces how much memory large language models need to track conversation history — by as much as 20x — without modifying the model itself. The method, called KV Cache Transform Coding (KVTC), applies ideas from media compression formats like JPEG to shrink the key-value cache behind multi-turn AI systems, lowering GPU memory demands and speeding up time-to-first-token by up to 8x. For enterprise AI applications that rely on agents and long contexts, this translates to reduced GPU memory costs, better prompt reuse, and up to an 8x reduction in latency by avoiding the need to recompute dropped KV cache values. Serving large language models at scale requires managing a massive amount of data, especially for multi-turn conversations and long coding sessions. Every time a user adds to a prompt, the system relies on stored memory to avoid recomputing the entire conversation history from scratch. However, this memory footprint grows rapidly, creating a severe bottleneck for latency and infrastructure costs. Why KV cache becomes a bottleneck at …

Nvidia’s new open weights Nemotron 3 super combines three different architectures to beat gpt-oss and Qwen in throughput

Nvidia’s new open weights Nemotron 3 super combines three different architectures to beat gpt-oss and Qwen in throughput

Published by skeptic

Multi-agent systems, designed to handle long-horizon tasks like software engineering or cybersecurity triaging, can generate up to 15 times the token volume of standard chats — threatening their cost-effectiveness in handling enterprise tasks. But today, Nvidia sought to help solve this problem with the release of Nemotron 3 Super, a 120-billion-parameter hybrid model, with weights posted on Hugging Face. By merging disparate architectural philosophies—state-space models, transformers, and a novel “Latent” mixture-of-experts design—Nvidia is attempting to provide the specialized depth required for agentic workflows without the bloat typical of dense reasoning models, and all available for commercial usage under mostly open weights. Triple hybrid architecture At the core of Nemotron 3 Super is a sophisticated architectural triad that balances memory efficiency with precision reasoning. The model utilizes a Hybrid Mamba-Transformer backbone, which interleaves Mamba-2 layers with strategic Transformer attention layers. To understand the implications for enterprise production, consider the “needle in a haystack” problem. Mamba-2 layers act like a “fast-travel” highway system, handling the vast majority of sequence processing with linear-time complexity. This allows the model …

Researchers baked 3x inference speedups directly into LLM weights — without speculative decoding

Researchers baked 3x inference speedups directly into LLM weights — without speculative decoding

Published by skeptic

As agentic AI workflows multiply the cost and latency of long reasoning chains, a team from the University of Maryland, Lawrence Livermore National Labs, Columbia University and TogetherAI has found a way to bake 3x throughput gains directly into a model’s weights. Unlike speculative decoding, which requires a separate drafting model, this approach requires no additional infrastructure — just a single special token added to the model’s existing architecture. The limits of next-token prediction Next-token prediction — generating text one token per forward pass — creates a throughput ceiling that becomes painfully expensive when models need to produce thousands of tokens. This bottleneck is especially problematic in reasoning models, which frequently generate thousands of “chain of thought” tokens before producing the final response, leading to a slow and expensive user experience. Multi-token prediction (MTP) offers an alternative training paradigm that allows a language model to produce multiple tokens simultaneously in a single forward pass.  For example, the model can be trained to predict a block of tokens all at once instead of just the immediate …

Best Home Gym Setup (2026): Adjustable Weights, Resistance Bands, and More

Best Home Gym Setup (2026): Adjustable Weights, Resistance Bands, and More

Published by skeptic

To join or not to join a gym: That is the question. If you opt out of building a home gym, you can join a club and have access to more weights and machines. Friends and classes motivate you to keep coming, and that monthly bill keeps you disciplined. On the other hand, gym memberships are steep, workouts can get hijacked by bullies, and going to the gym is an additional commute. My gym tardiness, however, will likely catch up to me. One of the most consistent messages from health and fitness experts today is that lifting weights has immeasurable benefits. Strength training allows us to keep doing the things we love well into our advanced years. It reduces blood sugar, lowers blood pressure, burns calories, and reduces inflammation. A recent review of studies in the British Journal of Sports Medicine by Harvard Medical School found that strength training is linked to lower risk for cardiovascular disease, diabetes, and cancer and provides a 10 to 17 percent lower overall risk of early death. But you …

You Don’t Need to Lift Heavy Weights to Build Bigger Muscles

You Don’t Need to Lift Heavy Weights to Build Bigger Muscles

Published by Jenni Sidey

When you see the biggest guy in the gym pull up to the weight room, you might assume he’ll be reaching for the heaviest weights. You’ve gotta pump massive iron to build massive muscles, right? Well, not really. “There’s a lot of lore around this routine or that routine, and a lot of it comes from former Soviet bloc country training regimens where most people were taking steroids,” says Stuart Phillips, PhD, a kinesiology professor and research director at McMaster University. Some of it also comes from a misunderstood study from 1946: While rehabilitating soldiers from World War II, army physician Thomas DeLorme argued that heavy resistance training was better at building muscle than, say, repetitive activities like walking or biking, and for decades, many took that to mean only heavy weights were helpful, says Dr. Phillips. Yet the more scientists look into it, the more they’re finding that heavy lifting isn’t a prerequisite for growing muscle, or as the experts call it, “hypertrophy.” Recently, Dr. Phillips led a network meta-analysis published in the British …