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News from Life Lines by Dr. Dolittle

All of today’s top news stories from Life Lines by Dr. Dolittle. Get the full analysis behind how media bias impacts breaking news.

In total, 10 have been published by Life Lines by Dr. Dolittle which Ground News has aggregated in the past 3 months.

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Top Life Lines by Dr. Dolittle News

Time Machine: Is Lactic Acid Really to Blame for Muscle Fatigue?

Trains · Brazil

Time Machine: Is Lactic Acid Really to Blame for Muscle Fatigue?

Have you ever experienced muscle fatigue? You know the feeling where your muscles start to burn and no matter how hard you try, you simply cannot summon any more strength? It is often assumed that the burning sensation associated with muscle fatigue is due to lactic acid building up in the muscles. But is that the full story? In this time machine post, we examine the science behind muscle fatigue […]See the Story

Red, White, and Bison: Celebrating Freedom and National Bison Month

United States · United States

Red, White, and Bison: Celebrating Freedom and National Bison Month

Happy 4th of July! What a perfect time to also honor National Bison Month! This month, we celebrate an icon of the American landscape. Bison are incredible animals, not just for their symbolic significance but also for their remarkable adaptations to extreme environments. As highlighted by the National Park Service’s Bison Bellows, their resilience in the face of brutal winters is extraordinary. Bison are uniquely adapted to harsh winter conditi…Read Article

Muscle adaptations to endurance exercise

Happy Pigeon Appreciation Day! Okay, I know it sounds strange to celebrate pigeons – the animal best known for gathering in large numbers, causing a raucous, as well as perching and pooping on just about everything. For just a moment though, I would like to consider the unique athletic attributes of these popcorn and park loving birds vs humans engaged in endurance exercise. Have you ever heard of pigeon racing […]Animals Read Article

How to Identify Heat Exhaustion and Heat Stroke

100% Center coverage: 3 sources

Illness from heat and humidity is a real thing. With those weather conditions forecast in the next few days in Connecticut and sure to resurface as summer approaches, a doctor with Yale New Haven Health has offered tips to prevent illnesses such heat exhaustion and heat stroke that can land people in the Emergency Department. Hospital of St. Raphael campus, Yale New New Haven Health System, Chapel Street, New Haven, Conn. Accuweather predicts a …Climate Change See the Story

Discovered by accident: Queen bumblebees can hibernate underwater!

Dr. Sabrina Rondeau, a postdoctoral fellow at the University of Ottawa, made a surprising discovery that has created quite the buzz. While checking on queen bumblebees hibernating in the refrigerator, she noticed that condensation had formed inside some of the containers housing the queen bumblebees. Interestingly, the bees survived the ordeal. Intrigued by how exposure to water might affect queen bees during hibernation, Dr. Rondeau conducted a…Ottawa, Ontario · Ottawa Read Article

“Hummingbirds of the Night”

A reference to nectar-feeding bats as “hummingbirds of the night” in a presentation at the 2025 American Physiology Summit in Baltimore last month caught my eye. What an appropriate nickname for bats that can have blood sugar levels exceeding 750 mg/dl after a meal! Sure, a hummingbird would think this was normal, but for a human these levels would warrant a trip to the emergency room. New research shared by […]Baltimore, MD · Baltimore Read Article

The electrophysiology of sudden cardiac death in high-performance athletes

Humans and racehorses have something in common when it comes to risk of sudden cardiac death. In fact, sudden cardiac death is the 2nd most common cause of death during exercise among these athletes. Although rare, it typically affects young, seemingly healthy individuals. Research suggests that exercise itself is not to blame, but rather an underlying predisposition for irregular heart rates that exercise uncovers. The most common inherited cau…Read Article

Some like it hot: Genetic twists in warm hibernation

Hibernation was also a hot…I mean warm…topic at the American Physiology Summit last month in Baltimore, MD. Thomas Crippen presented research conducted with team members Dr. Dylan Barth, Zac Carlson, Dr. Frank van Breukelen, and Dr. Allyson Hindle at the University of Nevada, Las Vegas. Their study focused on golden-mantled ground squirrels, Callospermophilus lateralis, which are remarkable even among hibernators. These squirrels can enter torpo…Baltimore, MD · Baltimore Read Article

Even small birds fly high

Dr. Catherine Ivy (Assistant Professor, University of Saskatchewan, Canada), shared research this morning at the 2025 APS Summit on the remarkable hypoxia tolerance of birds. Although bar-headed geese (above) are the poster-birds for research on extreme hypoxia tolerance, I was surprised to learn that even many small migratory species of birds fly at relatively high altitude. Tiny migratory yellow-rumped warblers (~12g), for example, travel for …Saskatoon · Saskatoon Read Article

The time has come…APS 2025 has kicked off!

We are so excited to be here in Baltimore for the 2025 American Physiology Summit! The meeting kicked off yesterday with a fantastic opening celebration. Today is packed with comparative physiology research topics. Stay tuned!Baltimore, MD · Baltimore Read Article

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