Negativity bias

Negative feelings may sometimes feel more pervasive to us than positive ones in our daily life, and happiness a tad evasive. Why is this?  Could it be we give negative feelings more significance than positive ones; more weight? That we think there must be something wrong so ruminate, scrutinise and analyse these feelings, taking them into our thinking and so make them worse? Could it be that negative feelings feel deeper, bigger or heavier than lighter ones, so we notice them more as they are more predominant in our consciousness, more concentrated in our physiology? Essentially our brain and so our…