The sun is setting，brightening your kids' faces as they play in the waves.You reach for your phone for this perfect moment.But before you do，here's a bit of surprising science：Taking photos is not the perfect way to keep memory as you think.
Taking too many pictures could actually harm the brain's ability to keep memories，says Elizabeth Loftus，a psychology professor at the University of California
Photos may outsource memories.It works in two ways：We either shake off the responsibility of remembering moments when taking pictures，or we're so distracted（分心的）by the process that we miss the moment altogether.
The first explanation is the loss of memory.People know that their camera is recording that moment，so they don't try to remember.Similarly，if you write down someone's phone number（不假思索地）because your brain tells you there's just no need.That's all well and good — until that piece of paper goes missing.
The other is distraction.We're distracted by the process of taking a photo — how we hold our phone，composing the photo，such as smiling faces，all of which uses up our attention that could otherwise help us memorize.
However，taking photos can benefit memory — when done mindfully.While taking a photo may be distracting，the act of preparation by focusing on visual details around has some upsides.
When people take the time to zoom in （拉近镜头） on specific things，memories become strengthened.
Another benefit is that we recall moments more accurately with the photos.Memory has been reshaped with the help of new information and new experiences.Thus，photos or videos help us recall moments as if they really happened.
Memories die away without a visual record backing them up.Therefore，a photo is an excellent tool to help remember when done purposefully，which is worth exploring further.
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