When the price rises people get greedy and buy too much at high levels.
Near historic (or medium-term) lows many people are way too scared to buy a lot more.
^^^This is why most traders lose money....Shhhh....Don't tell the noobs.

Well yeah. It's common that some people are afraid to buy after a downtrend because of worryin it will go down further. But really? People buy at historic heights? In fact the largest sell volumes came at those historic heights when it comes to doge coin. After all te hype wore off I don't think there were any bigger massive sell orders than the ones @ ~ 200+ satoshis.