
psychisch
psychological
Relating to a person's soul, mind, or psyche; mental, emotional.
Langanhaltender Stress kann eine große psychische Belastung sein.
Long-term stress can be a major psychological burden.
psychological
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psychological
Relating to a person's soul, mind, or psyche; mental, emotional.
Langanhaltender Stress kann eine große psychische Belastung sein.
Long-term stress can be a major psychological burden.
The adjective 'psychisch' (psychological/mental) comes directly from the noun 'die Psyche' (the psyche, the soul, the mind). It describes everything that has to do with a person's mental or emotional state.
Die Prüfung erzeugte bei ihm großen psychischen Druck.
The exam put him under great psychological pressure.
'Psychisch' (psychological/mental) is very often used in fixed combinations. Typical examples are 'psychische Gesundheit' (mental health), 'psychische Belastung' (psychological burden/stress), 'psychische Probleme' (mental health problems), and 'psychische Erkrankung' (mental illness).
Er leidet an einer schweren psychischen Erkrankung.
He suffers from a serious mental illness.
This word is mainly used in contexts dealing with health, well-being, and medicine. It often has a rather formal or technical character.
Nach dem Unfall erhielt er psychische Betreuung.
After the accident, he received psychological support.
mental / spiritual
Geistig and psychisch can both refer to something nonphysical in a person. Here, „geistig“ relates more to thinking, intellect, and intellectual abilities, while „psychisch“ refers to emotional experience or psychological strain. Choose the word according to the area concerned.

Nach der Krankheit war die lange Behandlung für ihn psychisch sehr belastend.
After the illness, the long treatment was very psychologically difficult for him.
Nach der Krankheit waren seine geistigen Fähigkeiten beim Rechnen deutlich schwächer.
After the illness, his mental arithmetic abilities were noticeably weaker.