医学百科 The Medicine Book (Big Ideas Simply Explained)
Those who failed to successfully complete any one of these stages, Freud believed, would, as adults, become fixated on that stage, prompting a range of destructive behaviours.
Instead of trying to reconstruct their fortunes, they engaged in a bitter and " violent contest with experience" -and ended up victims of that brooding fixation known as melancholia.
It's related to anal retentive fixation, which is supposedly the result of unresolved conflicts between you and your caregivers during potty training But like so many things Freud thought it's kind of bogus.
In temperate and polar climates, up to 40 meters below the surface, dense populations of giant kelp, the largest brown algae, grip the rocky seafloor with branching roots called holdfasts.
Both prevent blood clots from forming — blood thinners by preventing the formation of the clotting factors that hold clots together, and aspirin by preventing blood cells from clumping into groups that become clots.
Around 485 million years ago, graptolites lost the fused holdfast that pinned them to the seafloor and began moving with the current… Which is when these graptolites start to show up everywhere.