| Stress disrupts fundamental rhythms of the nervous system, leading to more frequent awakenings and more shallow sleep. |
| After the age of 40 our sleep patterns change, and we have many more nocturnal awakenings than in our younger years. |
| Sleep is fragmented by frequent arousals and awakenings, resulting in decreased or absent slow-wave and REM sleep. |
| Due to awkward sexual awakenings and a suffocating family life, Rita is a ticking time-bomb. |
| We assessed total sleep time, number of awakenings, and sleep onset latency as continuous variables. |
| Many of today's young, virulent anticapitalists experienced their social awakenings on campuses, in fields other than economics. |
