thumbnailArtboard 3"); background-size: contain; background-position: 50% center; background-repeat: no-repeat; } @media screen and (max-width: 480px) { #upNext.up-next-container .iris-upnext > .iris-slate-image, #upNext.up-next-container div[id$="end-next-slate"].iris-upnext > .iris-slate-image, #upNext.up-next-container div[id$="start-next-slate"].iris-upnext > .iris-slate-image { width: 100%; padding-bottom: calc(56.25% - 4px); } } #upNext.up-next-container .iris-upnext .iris-slate-timer-container, #upNext.up-next-container div[id$="end-next-slate"].iris-upnext .iris-slate-timer-container, #upNext.up-next-container div[id$="start-next-slate"].iris-upnext .iris-slate-timer-container { width: 100%; height: 100%; padding: 0px; inset: 0px; display: inline-block; text-align: center; position: absolute; } #upNext.up-next-container .iris-upnext .iris-slate-timer-container > .iris-slate-timer, #upNext.up-next-container .iris-upnext .iris-slate-timer-container div[id$="end-timer"], #upNext.up-next-container div[id$="end-next-slate"].iris-upnext .iris-slate-timer-container > .iris-slate-timer, #upNext.up-next-container div[id$="end-next-slate"].iris-upnext .iris-slate-timer-container > svg, #upNext.up-next-container div[id$="end-next-slate"].iris-upnext .iris-slate-timer-container div[id$="end-timer"], #upNext.up-next-container div[id$="start-next-slate"].iris-upnext .iris-slate-timer-container > .iris-slate-timer, #upNext.up-next-container div[id$="start-next-slate"].iris-upnext .iris-slate-timer-container div[id$="end-timer"] { width: 40%; left: 0px; right: 0px; min-height: 100%; display: block; position: absolute; font-size: 4em; line-height: 1.125; letter-spacing: -0.02em; background: rgba(0, 0, 0, 0.2); opacity: 0.8; margin: auto; } #upNext.up-next-container .iris-upnext .iris-slate-play-button, #upNext.up-next-container div[id$="end-next-slate"].iris-upnext .iris-slate-play-button, #upNext.up-next-container div[id$="start-next-slate"].iris-upnext .iris-slate-play-button { width: 100%; height: 100%; padding: 0px; inset: 0px; display: inline-block; text-align: center; position: absolute; } #upNext.up-next-container .iris-upnext .iris-slate-play-button img, #upNext.up-next-container div[id$="end-next-slate"].iris-upnext .iris-slate-play-button img, #upNext.up-next-container div[id$="start-next-slate"].iris-upnext .iris-slate-play-button img { opacity: 0.8; width: auto; height: 100%; max-height: 100%; margin: auto; display: block; } .not-hover #upNext.up-next-container .iris-upnext, .not-hover #upNext.up-next-container div[id$="end-next-slate"].iris-upnext, .not-hover #upNext.up-next-container div[id$="start-next-slate"].iris-upnext, .vjs-user-inactive #upNext.up-next-container .iris-upnext, .vjs-user-inactive #upNext.up-next-container div[id$="end-next-slate"].iris-upnext, .vjs-user-inactive #upNext.up-next-container div[id$="start-next-slate"].iris-upnext { backface-visibility: hidden; transform: translateY(3em); }
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AN ingredient lurking in energy drinks and supplements may increase your risk of a heart attack and stroke, scientists warn.

The ingredient has been touted for its cardiovascular benefits and research has even suggested it may help you live longer - but a new study casts doubt on these claims.

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