Difficult in example sentence

It certainly seems that we're going about our lives, that what we're doing, who we're with, what we're thinking about, have a big influence on our happiness, and yet these are the very factors that have been very difficult, in fact almost impossible, for scientists to study.

More example sentences with word difficult

Even if we could measure what every cell is doing at all times, we would still have to make sense of the recorded activity patterns, and that's so difficult, chances are we'll understand these patterns just as little as the brains that produce them.

Because although I've used scientific terms in songs, it's very difficult sometimes to make them lyrical.

And I really, strongly believe in the power of the small story, because it is so difficult to do humanitarian work at a global scale.

In the Middle East, conflict between Israelis and Palestinians continues unabated, and it becomes ever more difficult to see how, just how a possible, sustainable solution can be achieved.

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