Have you ever seen this？People fall asleep on the subway and then wake up （1）

exactly

exactly

（exact）
at the right stop.Perhaps you are one of them.How is this possible？Two doctors （2）

were interviewed

were interviewed

（interview） and they offered their opinions about it.
    "It's possible that your body 'gets used to （3）

waking

waking

（wake） up at a certain point each time during your commute （通勤），"said Dr Marc Leavey."That will be especially true （4）

if

if

you commute at the same time every day." However，Dr.Ronald Chervin does not fully buy it.
    "According to （5）

a

a

study，during sleep，our body reacts （反應(yīng)） differently when we hear our own name and other people's （6）

names

names

（name），"said Dr.Chervin.This suggests that our body doesn't turn off during sleep，which makes it （7）

possible

possible

（possibility） to pick up on the announcement of the stop."
    "Here's another possible reason.You may wake up at each stop，check if it's （8）

yours

yours

（you），and then go back to see，" added Dr.Chervin."But you just don't remember it.That's because you fall right back asleep before your brain has time to process your experience into long-term memory.
    This （9）

leads

leads

（lead） you to believe that you have slept the whole way through and woken up at
the right time.
    Dr.Chervin also warned， "If you fall asleep the minute you sit down and sleep for 20 minutes，there will be something wrong （10）

with

with

your health." So，try spending more time in your actual bed.