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How to Use Your Biometrics to Boost Energy, Health & Vitality

Written by Samantha George | Jan 19, 2026 2:45:22 PM

What if your body was already giving you the answers you are looking for, but you simply did not know how to listen yet?

Most of us live slightly disconnected from our physical signals. We push through fatigue, override hunger cues, ignore digestive issues, and normalize feeling “off.” Yet your body is constantly communicating with you. The key is learning how to understand its language.

This is where biometrics come in.

Biometrics are not about perfection, optimization, or obsessing over numbers. They are simple feedback tools that help you tune into what your body needs so you can support your energy, hormones, digestion, and overall vitality without guesswork.

Stress Is Stress. Your Body Does Not Care Where It Comes From

One of the most important concepts to understand is this:

Your body does not differentiate between types of stress.

Mental stress, emotional stress, physical stress, nutritional stress, and psychological stress are all processed by the nervous system in the same way. The body reads them as a threat. This is why:

  • Emotional stress can show up as digestive issues
  • Food intolerances can trigger anxiety
  • Poor sleep can disrupt hormones
    Overtraining can lead to fatigue and brain fog

The input, meaning the stressor, and the output, meaning the symptom, do not always show up in the same system.

So instead of asking, “What’s wrong with me?”
A more useful question is, “What is my body trying to tell me?”

Why Biometrics Matter

Biometrics give you real-time feedback from your body. They allow you to spot patterns rather than relying on willpower, assumptions, or vague symptoms.

Some data is qualitative, such as how you feel. Some data is quantitative, meaning measurable numbers. Together, they give you a much clearer picture of what is happening beneath the surface.

You do not need to track everything forever or all at once. The goal is awareness, not pressure.

The Core Biomarkers to Pay Attention To

1. Waking Body Temperature: A Window Into Energy and Metabolism

Your waking body temperature is one of the simplest and most revealing biomarkers. How to measure it:

  • Take it immediately upon waking
  • Use a two-decimal thermometer
  • Measure under the armpit, not orally or via a wearable

Optimal waking temperature:

  • Around 37.5°C (approximately 98.5–99.5°F)

If your temperature is consistently lower, it can indicate that your metabolism is slowed and your body is under-resourced. This does not automatically mean you have a thyroid condition. It can reflect factors such as inadequate food intake, poor sleep, immune activation, or prolonged stress.

Think of it as a daily check-in. It tells you how ready your body is to meet the day.

2. Waking Pulse: How Stressed Is Your System?

Alongside temperature, your waking pulse gives insight into adrenal function and stress hormones. How to measure it:

  • Take it immediately upon waking
  • Count beats for one full minute

A general healthy range is between 60 and 80 beats per minute.

A low pulse can occur when the body is deeply fatigued or recovering. A high pulse, especially when paired with a low body temperature, often suggests the body is relying on adrenaline rather than steady cortisol to wake you up. This can happen when:

  • You are under chronic stress
  • Blood sugar drops during the night
  • You exercise too late in the evening
  • Sleep quality is poor

Your body is not broken. It is compensating.

3. Waking Energy Levels: The Data You Already Have

Numbers matter, but so does how you feel. Each morning, ask yourself:

  • How do I feel physically?
  • How do I feel mentally?
  • How do I feel emotionally?
  • On a scale of 1 to 10, how much energy do I have?

Ideally, we wake up feeling relatively alert and motivated. Energy should dip slightly in the mid-afternoon, then gradually wind down in the evening as the body prepares for rest.

Many people experience the opposite pattern. Low energy in the morning, reliance on caffeine, a late-day surge, and difficulty sleeping at night.

This is not a personal failure. It is feedback.

4. Blood Sugar: The Foundation of Energy and Hormones

Blood sugar stability is essential. The body prioritizes it above almost everything else. You can measure blood sugar using:

  • A continuous glucose monitor
  • A simple finger-prick glucometer

Testing first thing in the morning, before meals, and before bed for a few days each week can reveal powerful patterns.

Rather than focusing only on “ideal” numbers, look for:

  • Large spikes and crashes
  • Energy dips after meals
  • Strong cravings for sugar or caffeine

For example, if a meal consistently leaves you exhausted and craving sweets, your blood sugar may be crashing. Adjusting protein, fat, and carbohydrate balance can often change this dramatically.

5. Food Reactions: Connecting Meals to How You Feel

A food diary does not need to be complicated. Simply note:

  • What you ate
  • How you felt 60 to 90 minutes later
  • Physical, mental, and emotional responses

You might notice patterns like:

  • Certain foods triggering anxiety
  • Heavy meals leading to brain fog
  • Specific carbohydrates causing intense cravings

These reactions are not random. They are information.

6. Digestion and the Bristol Stool Chart

Digestion is another powerful feedback system.

The Bristol Stool Chart categorizes bowel movements into types ranging from very constipated to very loose. Ideally, you are aiming for:

  • Regular bowel movements
  • Easy passage
  • A type close to number four on the chart

Constipation can indicate dehydration, low gut motility, or inflammation. Loose or urgent stools are often a stress response driven by adrenaline.

Digestion is not just about what you eat. It reflects nervous system balance, hydration, and overall resilience.

Patterns Matter More Than Perfection

No single biomarker tells the whole story. The magic is in seeing how they connect. For example:

  • Low body temperature plus high pulse can point to adrenal and thyroid stress
  • Food cravings combined with energy crashes can indicate blood sugar instability
  • Digestive urgency alongside anxiety often reflects nervous system overload

This is not about diagnosing yourself. It is about learning your body’s patterns and responding with curiosity rather than frustration.

How to Start Without Overwhelm

Start small. Choose one or two markers that feel most relevant to you. You might begin with:

  • Waking body temperature and pulse
  • A simple food and energy diary
  • Short-term blood sugar tracking

Write things down. Trying to hold it all in your head creates more stress and hides patterns.

This is experimentation, not judgment.

Your Body Is Not Broken. It Is Communicating

Symptoms are not random. They are messages.

When you learn how to listen, your body becomes one of your greatest allies. Biometrics simply give you the tools to translate what it is already saying.

More energy, better sleep, improved digestion, and hormonal balance are not about forcing the body to comply. They come from understanding what your body needs and responding with support.

That is where real vitality begins.