Estimated Income Tax Brackets and Rates In 2017, the income limits for all tax brackets and all filers will be adjusted for inflation and will be as follows (Table 1). The top marginal income tax rate of 39.6 percent will hit taxpayers with taxable income of $418,400 and higher for single filers and $470,700 and higher for married couples filing jointly.
Insomnia is another common cause of excessive sleepiness, in which a person has difficulty falling asleep or staying asleep for the 7-9 hours the body requires. People with insomnia are aware of their sleep struggles, but often don't consult with a doctor to receive proper treatment.
Even the condition of obstructive sleep apnea can cause hypercapnia. Sometimes it can be caused due weakness in the skeletal muscles. If the person is kept exposed to higher levels of carbon dioxide for long time, it can trigger hypercapnia. This condition can also be caused due to initial inhalation of supplementary oxygen by a patient with underlying medical problems like sleep apnea.