###Human: My heart rate increases with exertion. Should I be worried? ###Assistant: Hi. First of all, there is no need to worry and relieve your anxiety. In all probabilities, you are having obstructive sleep apnea as all your data fits into it. Do you have any symptoms like snoring, interrupted sleep, unrefreshing sleep, morning headaches, daytime sleepiness, etc.? If yes, then it further supports the diagnosis. Obstructive sleep apnea is a condition characterised by obstruction of upper airway especially during sleep due to lax airway and narrowing of airway due to obesity. Obstruction of upper airway leads to temporary stoppage of respiration, increased sympathetic drive and increased pulse rate. Also, another reason for pulse rate rise is deconditioning as you are not accustomed to activities. The investigation I suggest includes ENT examination if you have any symptoms of nasal stuffiness, recurrent tonsillitis to rule nasal causes of obstruction, thyroid function test, lipid profile, sugar, HbA1c and vitamin D. I also suggest polysomnography, which is sleep study to confirm the diagnosis and extent of disease and pressure of CPAP (continuous positive airway pressure) needed. Revert with the reports to a cardiologist online -->