Energy & Fatigue
Testosterone
NAD
Energy & Fatigue
Testosterone
NAD
Tired all the time? Let's find out why.
Fatigue has many causes, and most are worth checking for. A licensed Canadian clinician can review your symptoms, order the right tests, and help you understand what's going on.
Reviewed by licensed Canadian clinicians
Start with a 2 minutes assessment
Treatment adjusted with you by your care team
Why am I tired all the time?
Persistent tiredness most often comes from a mix of poor or disrupted sleep, stress, low mood, and medical causes such as anemia, thyroid problems, sleep apnea, or nutrient deficiencies. If it lasts more than a few weeks or affects your daily life, it's worth getting checked.
When tiredness needs prompt attention?
Seek urgent care if fatigue comes with chest pain, shortness of breath, fainting, sudden weakness, confusion, or thoughts of harming yourself. Call 911 or go to the nearest emergency department.
Common causes of fatigue
Poor or short sleep
Sleep apnea
Low iron or anemia
Thyroid conditions
Low B12 or vitamin D
Stress or low mood
Medications or alcohol
Blood sugar issues
Ongoing illness
We’re Canadian leaders in longevity program
Built on one of the largest canadian datasets in longevity care
Studied by our research team in healthspan competitions
Prescription-grade ingredients by certified pharmacies
How your cells make energy?
How your cells make energy?
How your cells make energy?
(nicotinamide adenine dinucleotide)
(nicotinamide adenine dinucleotide)
Your cells make energy in mitochondria, using nutrients and coenzymes like B vitamins, iron and NAD+. Whether changing any one of these helps with fatigue isn't established, so finding the underlying cause comes first.
Your cells make energy in mitochondria, using nutrients and coenzymes like B vitamins, iron and NAD+. Whether changing any one of these helps with fatigue isn’t established, so finding the underlying cause comes first.
Get started
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NAD levels drop up to 90% from age 30 to 60.
NAD levels drop up to 90% from age 30 to 60.
NAD levels drop up to 90% from age 30 to 60.
How your Jack assessment works
Tell us about your symptoms
Answer questions about sleep, mood, health history and medications.
Clinical review
We may recommend blood tests or other checks.
Understand your results
Your clinician explains what they found and what it means.
Get Started
Online assessment
Answers start with an assessment.
Answers start with an assessment.
Answers start with an assessment.
Fatigue has many causes. A licensed Canadian clinician reviews your symptoms and history, then helps you understand what to do next.
Fatigue has many causes. A licensed Canadian clinician reviews your symptoms and history, then helps you understand what to do next.
Fatigue has many causes. A licensed Canadian clinician reviews your symptoms and history, then helps you understand what to do next.
$79/first month
$79/first month
$79/first month
Applies to a monthly plan billed in full ($149/mo after).
What’s included
What’s included
Symptom and health history review
Symptom and health history review
Review by a licensed Canadian clinician
Review by a licensed Canadian clinician
Bloodwork requisition, if your clinician recommends it
Bloodwork requisition, if your clinician recommends it
A clear explanation of your results
A clear explanation of your results
Secure messaging for follow-up questions
Secure messaging for follow-up questions
Start assesment
Frequently asked questions
What is the Jack fatigue assessment?
It’s an online review of your symptoms, sleep, health history and medications by a licensed Canadian clinician. The goal is to help work out why you’re tired and what to do next.
Who reviews my answers?
A clinician licensed to practise in your province reviews them.
What happens after I submit?
The clinician may follow up with questions, recommend blood work, or suggest other next steps. You’ll get a clear explanation of what they found.
Will I need blood tests?
Not always. If your clinician recommends them, you’ll receive a requisition to get them done at a partner lab.
Can this replace my family doctor?
No. It’s a convenient starting point that can complement your regular care. Some symptoms need an in-person exam, and your clinician will tell you if that’s the case.
What does it cost, and is it covered by insurance?
Coverage depends on your plan, so check with your insurer.
Is my information private?
Yes. Your information is stored securely and shared only as described in our Privacy Policy.
Ready to start?
Find more info on clinical research here
Jack Health is Canada’s online men’s health clinic providing easy access to licensed Canadian clinicians, personalized treatment plans, and convenient home delivery.
© 2026 Jack&Jill Health Inc.
Jack Health is Canada’s online men’s health clinic providing easy access to licensed Canadian clinicians, personalized treatment plans, and convenient home delivery.
© 2026 Jack&Jill Health Inc.
Programs
Company
Treatments
Jack Health is Canada’s online men’s health clinic providing easy access to licensed Canadian clinicians, personalized treatment plans, and convenient home delivery.
© 2026 Jack&Jill Health Inc.
Programs
Company
Treatments