Inclusion Criteria:
• Body mass index values of ≤40 kg/m\^2
Exclusion Criteria:
* Not weight stable (\<5% change in body mass over the past six months)
* Overt cardiovascular, neurological, renal, liver, and/or metabolic illness (e.g., diabetes mellitus)
* Current, or history of uncontrolled, Stage 2 hypertension (blood pressure \>140 / 90 mmHg; anti-hypertensive medications are permitted)
* Diagnosed obstructive sleep apnea
* Previous bariatric surgery
* Diagnosis or signs (e.g., values below the lower limit of normal) of overt airway disease(s)
* Current or recent (regular use within the past 6 months) use of tobacco or nicotine products (e.g., cigarettes, vaping)
* Per the POWERbreathe® company:
* Patients who have undergone recent abdominal surgery and those with abdominal hernia.
* Asthma patients who have a very low symptom perception and suffer from frequent, severe exacerbations or with an abnormally low perception of dyspnoea.
* If a patient is suffering from a ruptured eardrum or any other condition of the ear.
* Patients with marked elevated left ventricular end-diastolic volume and pressure.
* Patients with worsening heart failure signs and symptoms after a respiratory/inspiratory muscle training (IMT) session
* If you are suffering from a cold, sinusitis, or respiratory tract infection, we advise that you do not use your POWERbreathe IMT device.
* Individuals who are not yet adults (infants, children, teenagers)
* Pregnant (self-reported and urine pregnancy test conducted), lactating (self-reported), or post-menopausal (self-reported) females
* Prisoners
