<p>But now, a new study has found that nightcaps have the opposite effect.<br /><br />Researchers at Akita University in Japan found that alcohol in the bloodstream leads to a deep sleep for the first half of the night but shallow sleep for the rest of it, reports The Telegraph.<br /><br />Volunteers were given three different doses of pure alcohol at three-week intervals and their sleep was tested.<br /><br />Any disturbance to the quality of the sleep was shown in the variations of the subject’s heart rate.</p>.<p>The researchers also found that too much drink before bed not only disturbs sleep but could also have a significant effect on the body’s digestive system and induce other illnesses.<br /><br />Dr Yohei Sagawa, of the department of neuropsychiatry at Akita University, said: “Although the first half of sleep after alcohol intake looks good, the result of the assessment shows that drinking leads to insomnia rather than good sleep.”</p>
<p>But now, a new study has found that nightcaps have the opposite effect.<br /><br />Researchers at Akita University in Japan found that alcohol in the bloodstream leads to a deep sleep for the first half of the night but shallow sleep for the rest of it, reports The Telegraph.<br /><br />Volunteers were given three different doses of pure alcohol at three-week intervals and their sleep was tested.<br /><br />Any disturbance to the quality of the sleep was shown in the variations of the subject’s heart rate.</p>.<p>The researchers also found that too much drink before bed not only disturbs sleep but could also have a significant effect on the body’s digestive system and induce other illnesses.<br /><br />Dr Yohei Sagawa, of the department of neuropsychiatry at Akita University, said: “Although the first half of sleep after alcohol intake looks good, the result of the assessment shows that drinking leads to insomnia rather than good sleep.”</p>