Exercise is one of the best things you can do for your health. It lowers your risk of heart disease, diabetes and stroke, it keeps you steady on your feet as you get older, and it improves how you sleep and feel. Most people reading this can start walking, swimming or lifting weights today, safely, without asking anyone's permission.
A smaller number of people should have a quick word with a doctor first. Not because exercise is dangerous for them — usually it is the single best thing they could do — but because starting sensibly matters more in their case. Five minutes with this page tells you which group you are in.
The checks below are the same ones certification bodies such as the IFPA teach personal trainers to run before they take on a new client. There is nothing secret about them, and you can run them on yourself.
Step 1: Seven questions
Answer these honestly. Nobody is watching, and there is no prize for a clean sheet.
| Ask yourself | If your answer is yes |
|---|---|
| Has a doctor ever told you that you have a heart condition, or that you should only exercise under medical supervision? | See a doctor before you start. |
| Do you get pain or tightness in your chest — at rest, or when you exert yourself? | See a doctor before you start. Do not wait for it to happen again. |
| Do you ever feel dizzy, faint, or lose your balance for no clear reason? | See a doctor before you start. |
| Do you get unusually breathless doing everyday things, like one flight of stairs? | See a doctor before you start. |
| Do you have a bone, joint or back problem that could get worse with exercise? | See a doctor or physiotherapist. You can almost always still train — just not blindly. |
| Are you taking medication for blood pressure or a heart condition? | Mention your exercise plans at your next appointment. |
| Is there any other reason you think you should not exercise? | Trust that instinct enough to ask someone. |
All seven answers no? You are almost certainly fine to start. Go to Step 3.
Step 2: Count your risk factors
Even without symptoms, some things make heart problems more likely. Trainers are taught to count them. You can count your own — they are not a verdict, just a way of deciding how carefully to begin.
| Risk factor | Counts if |
|---|---|
| Age | You are a man aged 45 or older, or a woman aged 55 or older |
| Family history | A close blood relative had a heart attack or heart surgery, or died suddenly of heart problems, before about 55 (father, brother) or 65 (mother, sister) |
| Smoking | You smoke, or quit within the last six months |
| Inactive lifestyle | You have not been getting much physical activity for the last few months — which is exactly why you are reading this |
| Weight around the middle | Your waistline is well above what is healthy for your build |
| High blood pressure | Confirmed high on two occasions, or you take medication for it |
| Cholesterol | You have been told your cholesterol is high, or you take medication for it |
| Blood sugar | You have been told you have prediabetes or borderline blood sugar |
Step 3: What your answers mean
| Your situation | What to do |
|---|---|
| No symptoms, none or one risk factor | Start now. Begin gently and build up. No clearance needed. |
| No symptoms, two or more risk factors | You can usually start with light activity such as walking. Get a check-up before anything strenuous. |
| Any symptom from Step 1 | See a doctor first. This is the group the questions exist for. |
| A diagnosed heart, lung, kidney or metabolic condition | See your doctor first, then look for a trainer experienced with your condition. |
Notice what is not on that list: being old, being unfit, or being overweight, on their own. None of those means you need permission to go for a walk. They are reasons to start gently, not reasons to stay on the sofa.
Get your blood pressure checked
If you do one thing from this page, do this. High blood pressure has no symptoms, which is why it goes unnoticed for years. It is also the one thing that genuinely changes how you should train: with a reading around 140/90 or higher that has not been treated, heavy lifting is best postponed until a doctor has seen it. Light activity such as walking is still good for you in the meantime.
Getting it measured is easy in Singapore. Ask at a polyclinic or GP, use the machine at many pharmacies, or check at a community health screening. It takes two minutes and costs little or nothing.
Stop and get help immediately if
These are not push-through-it signs. If any of them appear during or shortly after exercise, stop. If they are severe or do not settle quickly, call 995.
| Warning sign | Why it matters |
|---|---|
| Chest pain, pressure or tightness | Can signal the heart is not getting enough blood. Never wait it out. |
| Breathlessness far beyond the effort | Not the same as being out of shape. A sudden change matters. |
| Dizziness, feeling faint, or blacking out | Blood is not reaching the brain properly. |
| Pain into the jaw, neck, shoulder or arm | Heart problems do not always show up as chest pain. |
| Cold sweat, nausea, or a strong sense something is wrong | Trust it. This is a common way heart attacks present, especially in women. |
| Confusion, or you stop sweating in the heat | Serious heat illness. Get into the shade, start cooling, call for help. |
Exercising in Singapore heat
Our heat and humidity make exercise harder on the body than the same session would be in a cooler place. Sweat is how you cool down, and sweat does not evaporate well when the air is already damp — so heat builds up faster than you expect, especially in your first few weeks.
- Train early morning or after sunset rather than the middle of the day
- Drink before you are thirsty, and keep drinking afterwards
- Give yourself two to three weeks of easier sessions to get used to the heat
- Use the shade — void decks, covered walkways, park connectors with tree cover
- Feeling sick, headachy or unusually weak means stop, not push harder
How to start, without hurting yourself
Almost all beginner injuries come from doing too much too soon, not from choosing the wrong exercise. The fix is boring and it works: start below what you think you can manage, and add a little each week.
| Weeks | A sensible starting point |
|---|---|
| 1 to 2 | 20 to 30 minutes of brisk walking, three times a week. You should be able to talk, but not sing. |
| 3 to 4 | Add a little time or pace. Add two short sessions of simple strength work — sit-to-stand from a chair, wall push-ups, carrying shopping. |
| 5 to 8 | Build toward 150 minutes a week of moderate activity, plus two strength sessions. This is the level linked with the health benefits. |
| After that | Keep going, and make it slightly harder over time. Consistency beats intensity every single time. |
- Warm up for five to ten minutes before anything hard
- If a movement hurts — sharp pain, not muscle burn — stop doing that movement
- Muscle soreness one or two days later is normal. Joint pain is not
- Rest days are part of the plan, not a failure of willpower
- If you are unwell, skip it. Training through a fever is genuinely risky
When to get a professional involved
You do not need a trainer to start walking. A good one is worth it if you are recovering from an injury, managing a health condition, unsure whether your technique is safe, or you have started before and stopped. A qualified trainer should ask you every question on this page before your first session. If nobody asks about your health, that tells you something about them.
See a doctor for symptoms, medication questions and anything that needs a diagnosis. See a physiotherapist for an existing injury or a pain that will not settle. A trainer's job is to build your fitness safely once those are sorted — not to diagnose you.
The short version
- Most people can start today, gently, with no permission needed
- See a doctor first if you have symptoms, a diagnosed condition, or several risk factors
- Get your blood pressure checked — it is quick, cheap, and it changes the plan
- Chest pain, fainting or severe breathlessness means stop and get help. Call 995 if it is severe
- Start easier than you think, build slowly, respect the heat
- The risk of not exercising is higher than the risk of exercising sensibly
This page is general information, not medical advice. If anything here describes you, or you are simply unsure, ask a doctor — that is a sensible use of an appointment, not a waste of one.
Want to understand the science behind all of this properly — how the body responds to training, how to screen and assess safely, and how to coach good technique? That is what we teach on the IFPA Certified Personal Fitness Trainer Seminar, whether you want to train yourself better or train others for a living. See the PFT course