What Causes Poor Stamina?

Poor stamina can have various causes, ranging in severity from 'troubling' to 'very serious'.  Finding the true cause means ruling out or confirming each possibility – in other words, diagnosis.

Diagnosis is usually a complex process due to the sheer number of possible causes and related symptoms.  In order to diagnose poor stamina, we could:
  • Research the topic
  • Find a doctor with the time
  • Use a diagnostic computer system.
The process is the same, whichever method is used.

Step 1: List all Possible Causes

We begin by identifying the disease conditions which have "poor stamina" as a symptom.  Here are eight of many possibilities (more below):
  • Low Progesterone
  • Adrenal Fatigue
  • Hypoglycemia
  • Hypothyroidism
  • Low Testosterone
  • Iron Deficiency Anemia
  • Low Pregnenolone
  • Food Allergies

Step 2: Build a Symptom Checklist

We then identify all possible symptoms and risk factors of each possible cause, and check the ones that apply:
history of inner ear infection
carbohydrate craving during cycle
sugar/sweet craving
short-term cortisol use
constant fatigue
poor tolerance of heat
brittle fingernails
coffee consumption
occasionally feeling unusually cold
yellow/yellowish fingernails
prednisone use
having hot flashes
... and more than 190 others

Step 3: Rule Out or Confirm each Possible Cause

A differential diagnosis of your symptoms and risk factors finds the likely cause of poor stamina:
Cause Probability Status
Low Testosterone 94% Confirm
Low Progesterone 29% Unlikely
Hypothyroidism 24% Unlikely
Adrenal Fatigue 5% Ruled out
Hypoglycemia 5% Ruled out
Low Pregnenolone 3% Ruled out
Food Allergies 1% Ruled out
Iron Deficiency Anemia 0% Ruled out
* This is a simple example to illustrate the process

Arriving at a Correct Diagnosis

The Analyst™ is our online diagnosis tool that learns all about you through a straightforward process of multi-level questioning, providing diagnosis at the end.

In the Metabolic Symptoms section of the questionnaire, The Analyst™ will ask the following question about energy/stamina:
How would you rate your physical stamina (ability to undertake prolonged exercise)?
Possible responses:
→ I have poor endurance
→ I'm about average / don't know
→ I have strong endurance
Based on your response to this question, which may indicate either low energy/stamina or high energy/stamina, The Analyst™ will consider possibilities such as:
Phosphorus Deficiency

Sodium phosphate or potassium phosphate is often used by endurance athletes in order to increase aerobic capacity and athletic performance.  Phosphates reduce the effects of lactic acid build-up in the muscles; they help make oxygen delivery to the muscles more efficient; they are used in the production of Adenosine Triphosphate (the chemical form of energy within cells) and Creatine Phosphate (an immediate energy store) and therefore are believed to increase the chemical energy stored within cells.

... and also rule out issues such as: