Credit: iStock Your brain is made up of specialized cells called neurons that are constantly communicating with each other. Neuronal communication underlies all your experiences and perceptions. Your movements, thoughts, memories, fears and beliefs all arise from patterns of neurons communicating. When patterns are repeated, the connections between neurons (called synapses) strengthen. This is called … Continue reading Rewiring Your Brain: How Your Thoughts Shape Your Reality
Brain Physiology
Not Just a Pump: How Your Heart Talks to the Rest of Your Body
Credit: iStock/pepifoto When we learn about the heart in school, it’s usually described as a pump: strong, steady and rhythmic. That’s true. But what fascinates me most, as a physiologist, is that the heart is also a communicator, constantly exchanging messages with your brain, kidneys, muscles and blood vessels to keep your body balanced, safe … Continue reading Not Just a Pump: How Your Heart Talks to the Rest of Your Body
The Hidden Biology Behind Everyday Habits
Credit: iStock/Fauzi Muda Have you wondered why much of our daily life runs on autopilot? We check our phones without thinking, follow familiar routes and repeat routines almost automatically. These patterns feel psychological, yet they are deeply biological. Habits are neural shortcuts that the brain builds to conserve energy and increase efficiency. Through repetition, behaviors … Continue reading The Hidden Biology Behind Everyday Habits
Spotlight On: Parkinson’s Disease
Credit: iStock/Devonyu Parkinson’s disease is a progressive neurological disorder that affects how the brain controls movement. It develops gradually, often beginning with subtle symptoms that are easy to overlook. The condition was first described in 1817 by the British physician James Parkinson. Today it is recognized as one of the most common neurodegenerative diseases worldwide, … Continue reading Spotlight On: Parkinson’s Disease
The Memory Sniper: How Stress Modifies Our Brain
Credit: iStock/kali9 Her tangled locks were fluttering around her face.Rosy cheeks; grin pasted in place.The wind roared in her ears as the rollercoaster plummeted down.The rush of adrenaline through her veins sent her stumbling into the past.“You have great potential; never give it up in life,” her father remarked.It was her first real oil painting … Continue reading The Memory Sniper: How Stress Modifies Our Brain
Gone Fishing for Signals in the Gut-brain Connection
Credit: iStock Zebrafish is a small tropical freshwater fish, named for their zebra-like stripes. Though tiny, this little fish plays a big role in biomedical research. It might surprise you that humans share about 70% of their genes with zebrafish. This makes the fish a powerful model for studying health and disease. Meet the zebrafish … Continue reading Gone Fishing for Signals in the Gut-brain Connection
The Brain-boosting Power of Strength Training
Credit: iStock/Zorica Nastasic As the population ages, Alzheimer's disease and related dementias and other neurodegenerative diseases are on the rise. These conditions can make independence harder, but exercise can protect your brain. Aerobic exercises such as walking, jogging and bicycling can improve brain health, size and function. Research has shown that strength training may offer … Continue reading The Brain-boosting Power of Strength Training
Nanotechnology in Physiology: The Science Behind the Science Fiction
Credit: iStock/boonstudio When you hear “nanotechnology,” the image that comes to mind may be one from a recent movie you have seen, maybe in the Avengers franchise or the Terminator series. Many of these films use nanotechnology in what may seem like an unrealistic way to make some science fiction “movie magic.” Nanotechnology is being … Continue reading Nanotechnology in Physiology: The Science Behind the Science Fiction
Good Morning, Fall! How ‘Falling Back’ to Standard Time Affects Our Body Clock
Credit: iStock/simonapilolla Fall is here—a time for sweaters and scarves, warm beverages and changing leaves. Nights grow longer as the sun sets earlier, and in many parts of the U.S., we “fall back” from daylight saving to standard time to accommodate this shift. We may celebrate the feeling of getting to sleep in, or we … Continue reading Good Morning, Fall! How ‘Falling Back’ to Standard Time Affects Our Body Clock
Autism, the Microbiome and Picky Eating: What’s Really Going On?
Credit: iStock/Magone Autism, or autism spectrum disorder (ASD), is a complex developmental condition that affects communication, behavior and social interaction. It is often marked by repetitive behaviors and highly focused interests. While the exact causes of autism remain unclear, what we do know is that its prevalence is rising. One out of every 31 eight-year-olds … Continue reading Autism, the Microbiome and Picky Eating: What’s Really Going On?