Lorenzo Bernardino, MD

20/02/2026

Interesting science

Capsaicin, the compound that makes peppers hot, triggers "thermogenesis"—the process of heat production in organisms. When you eat spicy food, your internal temperature rises, your heart rate increases, and your blood vessels dilate to cool you down. This mimics the physiological response of light exercise. It can boost your metabolic rate by up to 8% for hours after the meal is over.

12/02/2026

Strong legs are linked to higher cognitive function, increased gray matter and larger brain volume because they are the body’s largest muscles and act as a powerful engine for cardiovascular health and chemical signaling to the brain. Training them releases myokines (signaling proteins) that boost brain-derived neurotrophic factor (BDNF), enhancing neuroplasticity, while improving blood flow and reducing inflammation that causes brain aging.

To elaborate:

📑Chemical Signaling (Myokines): Activating large leg muscles releases “hormone-like” myokines into the blood, which cross the blood-brain barrier to support memory and neuronal health.

📑Increased Blood Flow: Stronger legs demand more oxygen, improving circulation, which floods the brain with nutrients and oxygen, fostering a healthier environment.

📑Neurogenesis & Reduced Atrophy: The biochemical released (such as BDNF) spark the growth of new neurons, particularly in the hippocampus, directly countering age-related brain shrinkage.

📑Biomarker for Overall Health: Leg strength is a reliable, strong predictor of cognitive aging, sometimes even more indicative than overall fitness, as it reflects a high level of consistent physical activity.

Research indicates that even in identical twins, the twin with higher leg strength showed significantly better cognitive function and more gray matter, with a 40-watt increase in leg power linked to improved brain performance equivalent to being 3.3 years younger. Maintaining strong legs through exercises and strength training effectively protects against brain atrophy.

PMID: 26551663

10/02/2026

Alzheimer’s doesn’t just erase your hard drive. It corrupts the files first.
A new study reveals the brain isn’t just losing memories with Alzheimer’s. It’s scrambling them while you rest. The disease actively rewrites the save file of your memories during sleep, turning them into nonsense before deleting them.
Shared for informational purposes only.
Source: Neurology Research

01/02/2026

Regulate what you say

It sounds wild, but the words you speak, about yourself, your health, or your age, can trigger real physiological changes. Scientists call this the “nocebo effect”: the flip side of the placebo effect. While placebos can make you feel better, negative expectations or statements literally make you sicker. Saying things like “I feel awful” or “I’m getting too old” can send a cascade of cortisol through your body, the stress hormone that suppresses your immune system, increases inflammation, and even slows healing, all within minutes.

Researchers have found that the brain interprets negative words as threats, triggering stress responses that your body obeys automatically. Over time, chronic negative self-talk can increase susceptibility to infections, fatigue, and other health problems. Even subtle phrases like “I’m tired” or “I can’t handle this” prime your nervous system for stress, creating a loop that feeds on itself.

The good news? Awareness is power. Positive self-talk, affirmations, and reframing your words can calm the nervous system, boost immunity, and even improve mental clarity. Your body literally listens to your voice, so choosing what you say is choosing your health.

27/01/2026

Be thankful

Writing a simple thank-you letter could actually change your brain. 🧠

Research suggests that practicing gratitude may do more than just boost your mood in the moment. It can create lasting changes in how your brain processes positive emotions.

A 2016 study used fMRI scans to examine what happens when people practice gratitude regularly. Participants wrote one letter of thankfulness per week for just three weeks. Three months later, their brain scans revealed something fascinating. ✨

Those who wrote gratitude letters showed heightened activity in the medial prefrontal cortex. This is the brain region responsible for learning, decision-making, and managing your emotions.

The mechanism behind this?

Neuroplasticity. By repeatedly engaging in gratitude exercises, the brain appears to strengthen these specific neural pathways over time. This may make your brain more efficient at processing and experiencing thankful feelings naturally. 📝

Important context:

This research supports the idea that gratitude practices can contribute to improved mental well-being. However, this is not a magic cure. Results vary by individual, and practices like this work best as one tool among many for supporting your overall mental health. 💚

If you are working with a mental health professional, gratitude exercises can complement your care. They should never replace it.

Sometimes the simplest practices, done consistently, can support meaningful change. 🙏

Sources: Kini et al., NeuroImage (2016) PMID: 26746580

22/01/2026

Mental health is really important.

Chronic anxiety can quietly damage your well-being by keeping the body’s stress response switched on for too long. Over time, constant worry floods the system with hormones like cortisol, which can weaken immune function, disrupt digestion, trigger headaches, and create lasting muscle tension. Long-term stress also raises the risk of high blood pressure and other cardiovascular issues, while pushing some people toward unhealthy coping habits like overeating, smoking, or substance use. Learning to release what you cannot control is not just mindset advice. It is a protective habit for both physical health and mental health.

22/01/2026

Allot days for rest and recuperation

It hits really deep when Atty. Genesus M. Auza posts this...

"A hospital bill can wipe out ten years of savings.

Rest is cheaper. Sleep is cheaper. Taking care of yourself is cheaper."

Madalas inuuna natin ang trabaho, overtime, at deadlines kaysa sa katawan natin. Akala natin kaya pa, kahit pagod na pagod na. Hanggang sa isang araw, katawan na mismo ang susuko.

Hindi natin napapansin na ang simpleng pahinga ay isang uri ng investment. Yung tulog na kulang ngayon, babayaran mo rin balang araw. Health is wealth is not just a saying, totoo talaga.

Maraming tao ang nagsisisi lang kapag nasa ospital na. Doon mo marerealize na mas mahal pala ang gamutan kaysa sa isang araw na pahinga. Sana mas pinakinggan natin ang katawan natin noon pa.

Hindi kahinaan ang magpahinga. Hindi rin ito katamaran. Ito ay paraan ng pagprotekta sa sarili para makapagpatuloy pa sa buhay.

Piliin mong alagaan ang sarili mo habang may lakas ka pa. Walang trabaho o pera ang papalit sa kalusugan mo. Take care now, or pay the price later.

21/01/2026

Read carefully

A room full of infected patients failed to spread the flu to others in the room with them, in new study..

In a study that sounds like the beginning of a pandemic thriller, researchers from the University of Maryland placed flu-infected college students in a confined hotel room with healthy volunteers.

Despite hours of shared air and close contact without masks, not a single healthy participant contracted the virus. The results, published in PLOS Pathogens, challenge long-held assumptions about how easily the flu spreads in indoor settings. While the infected donors had high viral loads in their nasal passages, the lack of transmission suggests that simple proximity may not be the primary danger factor we once believed.

The key to this unexpected outcome lies in three factors: airflow, coughing, and participant age. Because the infected students coughed infrequently, significantly less virus was aerosolized into the environment. Meanwhile, constant air circulation from heaters and dehumidifiers diluted the remaining viral particles, preventing them from reaching infectious concentrations. These findings emphasize that improving indoor air quality through ventilation and portable purifiers may be just as vital as physical distancing. For those in high-risk environments, the study reinforces that while air quality is a powerful shield, an N95 mask remains the gold standard defense when coughing is present.

source: University of Maryland. (2026). Evaluating modes of influenza transmission (EMIT-2): Insights from lack of transmission in a controlled transmission trial with naturally infected donors. PLOS Pathogens.

21/01/2026

So, do not skip leg day!

People with stronger, more developed leg muscles tend to live longer and healthier lives. Building lower-body strength may play a powerful role in reaching 100.

21/01/2026

There is a link between skeletal muscle mass and cognitive impairment in older adults, and cognitive function can be improved through early intervention or by improving the level of skeletal muscle mass in older adults.

See link for full article:

https://pubmed.ncbi.nlm.nih.gov/40491991/

You must build your body to save your mind.
Neurologists call muscle the "anti-aging organ." Studies confirm seniors with higher muscle mass have significantly more gray matter. Lifting weights releases myokines that travel to the brain and protect neurons.
Strength training is brain training.
Shared for informational purposes only. Source: Journal of Gerontology

19/01/2026

Neuroscience shows that resilience is not simply a personality trait you are born with. It is supported by real neural networks in the brain that can strengthen over time. When you face stress, discomfort, or challenge and choose to persist rather than withdraw, you engage brain regions involved in emotional regulation, problem-solving, and stress recovery, particularly circuits linking the prefrontal cortex with the amygdala. Through neuroplasticity, repeated engagement of these pathways makes them more efficient, improving your ability to regulate emotions and adapt under pressure.

Resilience, therefore, is not fixed. It develops through experience and repeated coping efforts. Each time you navigate difficulty and recover, the brain becomes better prepared to handle future stress. This does not mean ignoring pain or forcing toughness, but gradually building capacity through action, reflection, and recovery. Over time, these experiences shape a nervous system that responds with greater stability, flexibility, and confidence when life becomes challenging.

14/01/2026

What’s new about Langeehans cells?