Why suicide risk can rise as depression lifts: energy returns before mood does

Follow the gap between returning energy and lifting mood

Severe depression often brings psychomotor retardation: movement, speech and thinking slow down, and the client struggles to make even small decisions. These symptoms can act as an unintended brake. A client may think about suicide yet lack the energy or organisation to plan and carry out an attempt. Treatment does not remove every symptom at the same pace.

As treatment starts to work, energy, sleep and decision-making may improve before hopelessness and low mood do. Antidepressants commonly take a few weeks to produce a clear therapeutic response. During that gap, the client may feel more able to act while still feeling hopeless. That mismatch is the core of the exam concept and the reason risk can rise as the client looks better.

Where medication warnings fit into the picture

Antidepressants carry a warning that children, teenagers and young adults under 25 may have more suicidal thoughts or behaviour, especially in the first few weeks of treatment and when the dose is changed. Product information for these medicines lists new or worsening depression, agitation, panic, insomnia, irritability and aggressive behaviour as changes that should be reported promptly.

The warning is about monitoring, not about withholding treatment. Untreated depression carries its own serious risk, and the decision to start, stop or change a medicine belongs to the prescriber. For the nurse, the practical message is that the start of treatment and any dose change are times to watch closely, to ask directly about suicidal thoughts and to involve family where appropriate.

Expected improvement versus warning signs

Some improvement is the goal: better sleep, more interest in self-care and a gradual lift in mood that the client can describe. What deserves attention is improvement that does not fit, such as a client who suddenly seems settled while still expressing hopelessness, or whose energy rises alongside restlessness and agitation. Ask what has changed rather than simply recording that the client looks better.

Recognised warning signs include talking about wanting to die or being a burden, researching ways to die, withdrawing from others, saying goodbye, giving away important items or making a will. New or increased warning signs matter most. Another high-risk period is the days to weeks after discharge from an emergency department or psychiatric unit following suicidal ideation or an attempt.

Turn the mechanism into nursing actions

Reassess suicide risk regularly during the early weeks of treatment rather than relying on the admission assessment. Ask directly and calmly about thoughts, plans and access to means. Document the client's own words and compare them with previous assessments. Report escalating risk to the prescriber and follow the unit's precaution level and observation policy.

Discharge planning should include a safety plan, follow-up appointments and teaching for the client and family about the warning signs and when to seek urgent help, including crisis line options. Teach that antidepressant benefit takes time, that doses should not be changed or stopped without advice, and that worsening mood, agitation or new suicidal thoughts should be reported straight away.

Work through a hypothetical exam-style scenario

Imagine a hypothetical client admitted with severe depression who started an antidepressant ten days ago. Staff note that he is now showering, eating and talking more. The options are to reduce his observation level because he is improving, to plan an early discharge, or to reassess his suicide risk directly. Reassessing suicide risk is the strongest answer.

Reducing observation and planning discharge both treat returning energy as proof of recovery. The tested reasoning is that energy and activity often return before mood and hopelessness improve, so this point in treatment can be a time of increased risk. Changes to precautions are made after a fresh assessment and in line with the team's plan, not on appearance alone.

Sources and further reading

MSD Manual Professional: Suicidal behavior. Increased risk early in treatment when psychomotor retardation eases before mood lifts, and high risk after discharge.

MSD Manual Professional: Drug treatment of depression. Timing of antidepressant response and the early-treatment suicide risk mechanism.

NIMH: Mental health medications. Warning for people under 25, especially in the first weeks and after dose changes.

NIMH: Warning signs of suicide. Behavioural and verbal warning signs, with emphasis on new or increased signs.