The problem may last a few seconds, but it can get worse and worse with age, leading to a heart attack or stroke.

VOA: special.2010.03.02

These include hearing a roaring or sucking noise, seeing the ocean suddenly pull back or rise, or feeling a strong earthquake that lasts more than twenty seconds.

VOA: special.2011.06.07

Each performer had sixty seconds to perform his or her song.

VOA: special.2009.08.14

"And here I'm just talking about it in about 15 or 20 seconds, maybe a minute, but it was a lifetime."

VOA: standard.2009.06.02

Occasionally, a face would appear for a few seconds at a screened hole in the canvas, or a cuffed hand could be seen waving.

VOA: standard.2009.05.25

That comes to around 3,000 deaths a day or one death every 40 seconds.

VOA: standard.2009.09.10

"He was telling me I need to finish second, and he was also telling me 'Don't step on the line,' and he was also telling me, 'Just try to stay close.' They shot the gun and I saw him for about maybe two or three seconds.

VOA: standard.2009.08.21

"Going out there, getting on the podiumand then watching two American flags go up while the national anthem was playing, and then to turn and there was like - it seemed like two or three seconds, but it was probably two-10ths where Johnny and I made eye contact - it was like 'We did it,'" Shortly after winning his gold medal, the 29-year-old Demong surprised his girlfriend Katie Koczynski by proposing at the post-race celebration.

VOA: standard.2010.02.27