How to Identify Core Energy and Somatic Self-Care: Practical Self-Diagnosis Exercises

You know you are tired, but not always what from: the meetings, the noise, never saying no, sleeping badly, or all of it at once. Identifying your core energy means moving from “I am tired” to seeing what drains it, what restores it and when it shifts during the day. Here are concrete self-observation exercises to do it without apps or tests.

What does it mean to identify your core energy, and how is it different from plain tiredness?

Identifying your core energy means systematically observing how much you have, how it varies across the day and the week, and which situations use it up or restore it. Tiredness is a passing sensation: “I am wiped out.” Core energy is a pattern: it tells you that afternoons with lots of people empty you, that a short walk reorganizes you, or that certain conversations leave you tense for hours. That is why you do not identify it by asking yourself how you are, but by collecting small pieces of data over several days and looking for repetition. This approach is reflective and non-clinical: it measures nothing medical and diagnoses nothing, it simply helps you know your operating conditions. If your tiredness is very intense, persistent or unexplained, mention it to a health professional too, because some physical causes cannot be ruled out by any self-observation exercise.

A good sign that you are doing it right is that the conclusions surprise you a little. People often assume that “work” drains them when it is really the interruptions, or that they need more rest when what they miss is an hour without stimulation. Observation sharpens the beliefs you started with.

How do you keep a seven-day energy log?

A seven-day energy log is a notebook where, three or four times a day, you write your energy level from 1 to 10 and what you were doing just before. It does not aim to be scientific, only to reveal your personal pattern. The essential thing is to write quickly, in under a minute, so the habit does not become one more task that wears you out. Add a second box with one word for how your body feels, such as light, dense, tense or scattered. At the end of the week, highlight the moments above seven and below four, and compare what they share: the time, the person, the type of task, what you ate or how you slept. Do not look for single causes. Usually three or four factors repeat, and with those you can already decide what to try first. If one day is missed, simply carry on without catching up.

1. Prepare the template. Columns: time, energy (1 to 10), body (one word), previous activity.
2. Choose fixed moments. For example on waking, before lunch, mid-afternoon and before bed.
3. Write without correcting. If you feel a 5, write a 5, even if you “should” feel better.
4. Mark the slopes. Note when energy rises or falls by more than three points between two consecutive entries and what happened in between.
5. Summarize in one sentence. “My energy drops after…, rises after…, and works best between… and…”.

How do you tell what recharges you from what drains you?

You tell what recharges you from what drains you by comparing how you feel just before and about thirty minutes after an activity, not by what you are supposed to enjoy. A meal with friends may recharge you and exhaust someone else; a creative task may give you energy or demand more than you have that day. Note three things: how you were before, what you did and how you feel after. If you come out better, it is a source. If you come out worse, it is a drain, even if it is valuable or unavoidable. Keep in mind that many things do both at once: a project you love still consumes hours. That is why it helps to look at dose and timing rather than sorting everything into black and white. The goal is not to remove every drain, since some are part of your life, but to know where to compensate and which ones you can reduce without giving up what matters.

This small grid helps you organize what you find:

What clues does your body give before you run out?

Your body often signals that energy is dropping before you feel exhausted, through small, personal cues: a tightening jaw, shoulders creeping up, a sudden craving for sugar or caffeine, irritation over tiny details, trouble choosing between two simple options, or a sense of background noise. Identifying your own warning signature is one of the most useful parts of the exercise, because it lets you stop at the point where a short break still works, instead of waiting for full depletion. Everyone has different indicators, and you find them by observing, not by reading other people’s lists. A simple method is a two-minute scan from head to toe, three times a day, noting the first area that asks for attention. After a week or two you will see which ones repeat and in what order they appear before a dip.

This work connects with our articles on the signs of mental and emotional fatigue and on biorhythms and daily energy management, which help you interpret the hours of the day when your log always dips.

What do you do with what you discover?

With what you discover, you first read your notes calmly and then run one or two small experiments, not a life overhaul. Read your notes like a map: where the slopes are, which hours perform best, which people or tasks change your state. Pick a single hypothesis, for example “if I stop email after nine, I sleep better,” and test it for a week with one simple measure to compare. Avoid turning every finding into a rigid rule: conditions change, and what recharges you today may weigh on you in another stage. Nor should you use it to blame yourself, because finding that certain things drain you does not mean you are fragile, only that you have limits like anyone. If your data points to tiredness that does not improve with reasonable changes, it is a good moment to consult a professional and bring your notes as a starting point.

Illustrative case (composite, not a real testimonial): one person believed their problem was “working too much.” After seven days of logging they saw that their energy always fell after calls with no agenda and recovered after eating away from their desk. They did not cut hours: they asked for a short agenda for calls and went outside for twenty minutes at midday. With that, the mid-afternoon drop stopped being a wall and became a slope.

To continue the practice, see how recovery is approached in our guide on how to recover your inner energy, or review the overall map in the complete guide to core energy. If you want a broader starting point, how to know yourself offers a general frame for observing yourself with method.

If you want a more organized reading of your resources and how you hold up under pressure, you can take the free Resilience and Coping test. The PRO sub-block on core energy goes deeper into sources and drains.